code:
import baseRandom from './_baseRandom.js';
import isIterateeCall from './_isIterateeCall.js';
import toFinite from './toFinite.js';

/** Built-in method references without a dependency on `root`. */
var freeParseFloat = parseFloat;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMin = Math.min,
    nativeRandom = Math.random;

/**
 * Produces a random number between the inclusive `lower` and `upper` bounds.
 * If only one argument is provided a number between `0` and the given number
 * is returned. If `floating` is `true`, or either `lower` or `upper` are
 * floats, a floating-point number is returned instead of an integer.
 *
 * **Note:** JavaScript follows the IEEE-754 standard for resolving
 * floating-point values which can produce unexpected results.
 *
 * @static
 * @memberOf _
 * @since 0.7.0
 * @category Number
 * @param {number} [lower=0] The lower bound.
 * @param {number} [upper=1] The upper bound.
 * @param {boolean} [floating] Specify returning a floating-point number.
 * @returns {number} Returns the random number.
 * @example
 *
 * _.random(0, 5);
 * // => an integer between 0 and 5
 *
 * _.random(5);
 * // => also an integer between 0 and 5
 *
 * _.random(5, true);
 * // => a floating-point number between 0 and 5
 *
 * _.random(1.2, 5.2);
 * // => a floating-point number between 1.2 and 5.2
 */
function random(lower, upper, floating) {
  if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
    upper = floating = undefined;
  }
  if (floating === undefined) {
    if (typeof upper == 'boolean') {
      floating = upper;
      upper = undefined;
    }
    else if (typeof lower == 'boolean') {
      floating = lower;
      lower = undefined;
    }
  }
  if (lower === undefined && upper === undefined) {
    lower = 0;
    upper = 1;
  }
  else {
    lower = toFinite(lower);
    if (upper === undefined) {
      upper = lower;
      lower = 0;
    } else {
      upper = toFinite(upper);
    }
  }
  if (lower > upper) {
    var temp = lower;
    lower = upper;
    upper = temp;
  }
  if (floating || lower % 1 || upper % 1) {
    var rand = nativeRandom();
    return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
  }
  return baseRandom(lower, upper);
}

export default random;


code:
import createRange from './_createRange.js';

/**
 * Creates an array of numbers (positive and/or negative) progressing from
 * `start` up to, but not including, `end`. A step of `-1` is used if a negative
 * `start` is specified without an `end` or `step`. If `end` is not specified,
 * it's set to `start` with `start` then set to `0`.
 *
 * **Note:** JavaScript follows the IEEE-754 standard for resolving
 * floating-point values which can produce unexpected results.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Util
 * @param {number} [start=0] The start of the range.
 * @param {number} end The end of the range.
 * @param {number} [step=1] The value to increment or decrement by.
 * @returns {Array} Returns the range of numbers.
 * @see _.inRange, _.rangeRight
 * @example
 *
 * _.range(4);
 * // => [0, 1, 2, 3]
 *
 * _.range(-4);
 * // => [0, -1, -2, -3]
 *
 * _.range(1, 5);
 * // => [1, 2, 3, 4]
 *
 * _.range(0, 20, 5);
 * // => [0, 5, 10, 15]
 *
 * _.range(0, -4, -1);
 * // => [0, -1, -2, -3]
 *
 * _.range(1, 4, 0);
 * // => [1, 1, 1]
 *
 * _.range(0);
 * // => []
 */
var range = createRange();

export default range;

license: mit


code:
import createRange from './_createRange.js';

/**
 * This method is like `_.range` except that it populates values in
 * descending order.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Util
 * @param {number} [start=0] The start of the range.
 * @param {number} end The end of the range.
 * @param {number} [step=1] The value to increment or decrement by.
 * @returns {Array} Returns the range of numbers.
 * @see _.inRange, _.range
 * @example
 *
 * _.rangeRight(4);
 * // => [3, 2, 1, 0]
 *
 * _.rangeRight(-4);
 * // => [-3, -2, -1, 0]
 *
 * _.rangeRight(1, 5);
 * // => [4, 3, 2, 1]
 *
 * _.rangeRight(0, 20, 5);
 * // => [15, 10, 5, 0]
 *
 * _.rangeRight(0, -4, -1);
 * // => [-3, -2, -1, 0]
 *
 * _.rangeRight(1, 4, 0);
 * // => [1, 1, 1]
 *
 * _.rangeRight(0);
 * // => []
 */
var rangeRight = createRange(true);

export default rangeRight;


code:
import createWrap from './_createWrap.js';
import flatRest from './_flatRest.js';

/** Used to compose bitmasks for function metadata. */
var WRAP_REARG_FLAG = 256;

/**
 * Creates a function that invokes `func` with arguments arranged according
 * to the specified `indexes` where the argument value at the first index is
 * provided as the first argument, the argument value at the second index is
 * provided as the second argument, and so on.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Function
 * @param {Function} func The function to rearrange arguments for.
 * @param {...(number|number[])} indexes The arranged argument indexes.
 * @returns {Function} Returns the new function.
 * @example
 *
 * var rearged = _.rearg(function(a, b, c) {
 *   return [a, b, c];
 * }, [2, 0, 1]);
 *
 * rearged('b', 'c', 'a')
 * // => ['a', 'b', 'c']
 */
var rearg = flatRest(function(func, indexes) {
  return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
});

export default rearg;


code:
import arrayReduce from './_arrayReduce.js';
import baseEach from './_baseEach.js';
import baseIteratee from './_baseIteratee.js';
import baseReduce from './_baseReduce.js';
import isArray from './isArray.js';

/**
 * Reduces `collection` to a value which is the accumulated result of running
 * each element in `collection` thru `iteratee`, where each successive
 * invocation is supplied the return value of the previous. If `accumulator`
 * is not given, the first element of `collection` is used as the initial
 * value. The iteratee is invoked with four arguments:
 * (accumulator, value, index|key, collection).
 *
 * Many lodash methods are guarded to work as iteratees for methods like
 * `_.reduce`, `_.reduceRight`, and `_.transform`.
 *
 * The guarded methods are:
 * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
 * and `sortBy`
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to iterate over.
 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
 * @param {*} [accumulator] The initial value.
 * @returns {*} Returns the accumulated value.
 * @see _.reduceRight
 * @example
 *
 * _.reduce([1, 2], function(sum, n) {
 *   return sum + n;
 * }, 0);
 * // => 3
 *
 * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
 *   (result[value] || (result[value] = [])).push(key);
 *   return result;
 * }, {});
 * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
 */
function reduce(collection, iteratee, accumulator) {
  var func = isArray(collection) ? arrayReduce : baseReduce,
      initAccum = arguments.length < 3;

  return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach);
}

export default reduce;


code:
import arrayReduceRight from './_arrayReduceRight.js';
import baseEachRight from './_baseEachRight.js';
import baseIteratee from './_baseIteratee.js';
import baseReduce from './_baseReduce.js';
import isArray from './isArray.js';

/**
 * This method is like `_.reduce` except that it iterates over elements of
 * `collection` from right to left.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to iterate over.
 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
 * @param {*} [accumulator] The initial value.
 * @returns {*} Returns the accumulated value.
 * @see _.reduce
 * @example
 *
 * var array = [[0, 1], [2, 3], [4, 5]];
 *
 * _.reduceRight(array, function(flattened, other) {
 *   return flattened.concat(other);
 * }, []);
 * // => [4, 5, 2, 3, 0, 1]
 */
function reduceRight(collection, iteratee, accumulator) {
  var func = isArray(collection) ? arrayReduceRight : baseReduce,
      initAccum = arguments.length < 3;

  return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
}

export default reduceRight;


code:
import arrayFilter from './_arrayFilter.js';
import baseFilter from './_baseFilter.js';
import baseIteratee from './_baseIteratee.js';
import isArray from './isArray.js';
import negate from './negate.js';

/**
 * The opposite of `_.filter`; this method returns the elements of `collection`
 * that `predicate` does **not** return truthy for.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to iterate over.
 * @param {Function} [predicate=_.identity] The function invoked per iteration.
 * @returns {Array} Returns the new filtered array.
 * @see _.filter
 * @example
 *
 * var users = [
 *   { 'user': 'barney', 'age': 36, 'active': false },
 *   { 'user': 'fred',   'age': 40, 'active': true }
 * ];
 *
 * _.reject(users, function(o) { return !o.active; });
 * // => objects for ['fred']
 *
 * // The `_.matches` iteratee shorthand.
 * _.reject(users, { 'age': 40, 'active': true });
 * // => objects for ['barney']
 *
 * // The `_.matchesProperty` iteratee shorthand.
 * _.reject(users, ['active', false]);
 * // => objects for ['fred']
 *
 * // The `_.property` iteratee shorthand.
 * _.reject(users, 'active');
 * // => objects for ['barney']
 */
function reject(collection, predicate) {
  var func = isArray(collection) ? arrayFilter : baseFilter;
  return func(collection, negate(baseIteratee(predicate, 3)));
}

export default reject;


code:
npm run build
npm run doc
npm i
git clone --depth=10 --branch=master git@github.com:lodash-archive/lodash-cli.git ./node_modules/lodash-cli
mkdir -p ./node_modules/lodash-cli/node_modules/lodash; cd $_; cp ../../../../lodash.js ./lodash.js; cp ../../../../package.json ./package.json
cd ../../; npm i --production; cd ../../
node ./node_modules/lodash-cli/bin/lodash core exports=node -o ./npm-package/core.js
node ./node_modules/lodash-cli/bin/lodash modularize exports=node -o ./npm-package
cp lodash.js npm-package/lodash.js
cp dist/lodash.min.js npm-package/lodash.min.js
cp LICENSE npm-package/LICENSE

1. Clone two repos
Bump lodash version in package.json, readme, package=locak, lodash.js
npm run build
npm run doc

2. update mappings in ldoash-cli
3. copy ldoash into lodash-cli node modules and package json.

node ./node_modules/lodash-cli/bin/lodash core exports=node -o ./npm-package/core.js
node ./node_modules/lodash-cli/bin/lodash modularize exports=node -o ./npm-package

1. Clone the two repositories:
```sh
$ git clone https://github.com/lodash/lodash.git
$ git clone https://github.com/bnjmnt4n/lodash-cli.git
```
2. Update lodash-cli to accomdate changes in lodash source. This can typically involve adding new function dependency mappings in lib/mappings.js. Sometimes, additional changes might be needed for more involved functions.
3. In the lodash repository, update references to the lodash version in README.md, lodash.js, package.jsona nd package-lock.json
4. Run:
```sh
npm run build
npm run doc
node ../lodash-cli/bin/lodash core -o ./dist/lodash.core.js
```
5. Add a commit and tag the release
mkdir ../lodash-temp
cp lodash.js dist/lodash.min.js dist/lodash.core.js dist/lodash.core.min.js ../lodash-temp/
node ../lodash-cli/bin/lodash modularize exports=node -o .
cp ../lodash-temp/lodash.core.js core.js
cp ../lodash-temp/lodash.core.min.js core.min.js
cp ../lodash-temp/lodash.js lodash.js
cp ../lodash-temp/lodash.min.js lodash.min.js

❯ node ../lodash-cli/bin/lodash modularize exports=es -o .


code:
import baseIteratee from './_baseIteratee.js';
import basePullAt from './_basePullAt.js';

/**
 * Removes all elements from `array` that `predicate` returns truthy for
 * and returns an array of the removed elements. The predicate is invoked
 * with three arguments: (value, index, array).
 *
 * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
 * to pull elements from an array by value.
 *
 * @static
 * @memberOf _
 * @since 2.0.0
 * @category Array
 * @param {Array} array The array to modify.
 * @param {Function} [predicate=_.identity] The function invoked per iteration.
 * @returns {Array} Returns the new array of removed elements.
 * @example
 *
 * var array = [1, 2, 3, 4];
 * var evens = _.remove(array, function(n) {
 *   return n % 2 == 0;
 * });
 *
 * console.log(array);
 * // => [1, 3]
 *
 * console.log(evens);
 * // => [2, 4]
 */
function remove(array, predicate) {
  var result = [];
  if (!(array && array.length)) {
    return result;
  }
  var index = -1,
      indexes = [],
      length = array.length;

  predicate = baseIteratee(predicate, 3);
  while (++index < length) {
    var value = array[index];
    if (predicate(value, index, array)) {
      result.push(value);
      indexes.push(index);
    }
  }
  basePullAt(array, indexes);
  return result;
}

export default remove;


code:
import baseRepeat from './_baseRepeat.js';
import isIterateeCall from './_isIterateeCall.js';
import toInteger from './toInteger.js';
import toString from './toString.js';

/**
 * Repeats the given string `n` times.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category String
 * @param {string} [string=''] The string to repeat.
 * @param {number} [n=1] The number of times to repeat the string.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {string} Returns the repeated string.
 * @example
 *
 * _.repeat('*', 3);
 * // => '***'
 *
 * _.repeat('abc', 2);
 * // => 'abcabc'
 *
 * _.repeat('abc', 0);
 * // => ''
 */
function repeat(string, n, guard) {
  if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
    n = 1;
  } else {
    n = toInteger(n);
  }
  return baseRepeat(toString(string), n);
}

export default repeat;


code:
import toString from './toString.js';

/**
 * Replaces matches for `pattern` in `string` with `replacement`.
 *
 * **Note:** This method is based on
 * [`String#replace`](https://mdn.io/String/replace).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to modify.
 * @param {RegExp|string} pattern The pattern to replace.
 * @param {Function|string} replacement The match replacement.
 * @returns {string} Returns the modified string.
 * @example
 *
 * _.replace('Hi Fred', 'Fred', 'Barney');
 * // => 'Hi Barney'
 */
function replace() {
  var args = arguments,
      string = toString(args[0]);

  return args.length < 3 ? string : string.replace(args[1], args[2]);
}

export default replace;


code:
import baseRest from './_baseRest.js';
import toInteger from './toInteger.js';

/** Error message constants. */
var FUNC_ERROR_TEXT = 'Expected a function';

/**
 * Creates a function that invokes `func` with the `this` binding of the
 * created function and arguments from `start` and beyond provided as
 * an array.
 *
 * **Note:** This method is based on the
 * [rest parameter](https://mdn.io/rest_parameters).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Function
 * @param {Function} func The function to apply a rest parameter to.
 * @param {number} [start=func.length-1] The start position of the rest parameter.
 * @returns {Function} Returns the new function.
 * @example
 *
 * var say = _.rest(function(what, names) {
 *   return what + ' ' + _.initial(names).join(', ') +
 *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
 * });
 *
 * say('hello', 'fred', 'barney', 'pebbles');
 * // => 'hello fred, barney, & pebbles'
 */
function rest(func, start) {
  if (typeof func != 'function') {
    throw new TypeError(FUNC_ERROR_TEXT);
  }
  start = start === undefined ? start : toInteger(start);
  return baseRest(func, start);
}

export default rest;


code:
import castPath from './_castPath.js';
import isFunction from './isFunction.js';
import toKey from './_toKey.js';

/**
 * This method is like `_.get` except that if the resolved value is a
 * function it's invoked with the `this` binding of its parent object and
 * its result is returned.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @param {Array|string} path The path of the property to resolve.
 * @param {*} [defaultValue] The value returned for `undefined` resolved values.
 * @returns {*} Returns the resolved value.
 * @example
 *
 * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
 *
 * _.result(object, 'a[0].b.c1');
 * // => 3
 *
 * _.result(object, 'a[0].b.c2');
 * // => 4
 *
 * _.result(object, 'a[0].b.c3', 'default');
 * // => 'default'
 *
 * _.result(object, 'a[0].b.c3', _.constant('default'));
 * // => 'default'
 */
function result(object, path, defaultValue) {
  path = castPath(path, object);

  var index = -1,
      length = path.length;

  // Ensure the loop is entered when path is empty.
  if (!length) {
    length = 1;
    object = undefined;
  }
  while (++index < length) {
    var value = object == null ? undefined : object[toKey(path[index])];
    if (value === undefined) {
      index = length;
      value = defaultValue;
    }
    object = isFunction(value) ? value.call(object) : value;
  }
  return object;
}

export default result;


code:
/** Used for built-in method references. */
var arrayProto = Array.prototype;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeReverse = arrayProto.reverse;

/**
 * Reverses `array` so that the first element becomes the last, the second
 * element becomes the second to last, and so on.
 *
 * **Note:** This method mutates `array` and is based on
 * [`Array#reverse`](https://mdn.io/Array/reverse).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to modify.
 * @returns {Array} Returns `array`.
 * @example
 *
 * var array = [1, 2, 3];
 *
 * _.reverse(array);
 * // => [3, 2, 1]
 *
 * console.log(array);
 * // => [3, 2, 1]
 */
function reverse(array) {
  return array == null ? array : nativeReverse.call(array);
}

export default reverse;


code:
import createRound from './_createRound.js';

/**
 * Computes `number` rounded to `precision`.
 *
 * @static
 * @memberOf _
 * @since 3.10.0
 * @category Math
 * @param {number} number The number to round.
 * @param {number} [precision=0] The precision to round to.
 * @returns {number} Returns the rounded number.
 * @example
 *
 * _.round(4.006);
 * // => 4
 *
 * _.round(4.006, 2);
 * // => 4.01
 *
 * _.round(4060, -2);
 * // => 4100
 */
var round = createRound('round');

export default round;


code:
import arraySample from './_arraySample.js';
import baseSample from './_baseSample.js';
import isArray from './isArray.js';

/**
 * Gets a random element from `collection`.
 *
 * @static
 * @memberOf _
 * @since 2.0.0
 * @category Collection
 * @param {Array|Object} collection The collection to sample.
 * @returns {*} Returns the random element.
 * @example
 *
 * _.sample([1, 2, 3, 4]);
 * // => 2
 */
function sample(collection) {
  var func = isArray(collection) ? arraySample : baseSample;
  return func(collection);
}

export default sample;


code:
import arraySampleSize from './_arraySampleSize.js';
import baseSampleSize from './_baseSampleSize.js';
import isArray from './isArray.js';
import isIterateeCall from './_isIterateeCall.js';
import toInteger from './toInteger.js';

/**
 * Gets `n` random elements at unique keys from `collection` up to the
 * size of `collection`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Collection
 * @param {Array|Object} collection The collection to sample.
 * @param {number} [n=1] The number of elements to sample.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {Array} Returns the random elements.
 * @example
 *
 * _.sampleSize([1, 2, 3], 2);
 * // => [3, 1]
 *
 * _.sampleSize([1, 2, 3], 4);
 * // => [2, 3, 1]
 */
function sampleSize(collection, n, guard) {
  if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
    n = 1;
  } else {
    n = toInteger(n);
  }
  var func = isArray(collection) ? arraySampleSize : baseSampleSize;
  return func(collection, n);
}

export default sampleSize;


code:
import at from './wrapperAt.js';
import chain from './chain.js';
import commit from './commit.js';
import lodash from './wrapperLodash.js';
import next from './next.js';
import plant from './plant.js';
import reverse from './wrapperReverse.js';
import tap from './tap.js';
import thru from './thru.js';
import toIterator from './toIterator.js';
import toJSON from './toJSON.js';
import value from './wrapperValue.js';
import valueOf from './valueOf.js';
import wrapperChain from './wrapperChain.js';

export default {
  at, chain, commit, lodash, next,
  plant, reverse, tap, thru, toIterator,
  toJSON, value, valueOf, wrapperChain
};


code:
export { default as at } from './wrapperAt.js';
export { default as chain } from './chain.js';
export { default as commit } from './commit.js';
export { default as lodash } from './wrapperLodash.js';
export { default as next } from './next.js';
export { default as plant } from './plant.js';
export { default as reverse } from './wrapperReverse.js';
export { default as tap } from './tap.js';
export { default as thru } from './thru.js';
export { default as toIterator } from './toIterator.js';
export { default as toJSON } from './toJSON.js';
export { default as value } from './wrapperValue.js';
export { default as valueOf } from './valueOf.js';
export { default as wrapperChain } from './wrapperChain.js';
export { default } from './seq.default.js';


code:
import baseSet from './_baseSet.js';

/**
 * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
 * it's created. Arrays are created for missing index properties while objects
 * are created for all other missing properties. Use `_.setWith` to customize
 * `path` creation.
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 3.7.0
 * @category Object
 * @param {Object} object The object to modify.
 * @param {Array|string} path The path of the property to set.
 * @param {*} value The value to set.
 * @returns {Object} Returns `object`.
 * @example
 *
 * var object = { 'a': [{ 'b': { 'c': 3 } }] };
 *
 * _.set(object, 'a[0].b.c', 4);
 * console.log(object.a[0].b.c);
 * // => 4
 *
 * _.set(object, ['x', '0', 'y', 'z'], 5);
 * console.log(object.x[0].y.z);
 * // => 5
 */
function set(object, path, value) {
  return object == null ? object : baseSet(object, path, value);
}

export default set;


code:
import baseSet from './_baseSet.js';

/**
 * This method is like `_.set` except that it accepts `customizer` which is
 * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
 * path creation is handled by the method instead. The `customizer` is invoked
 * with three arguments: (nsValue, key, nsObject).
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Object
 * @param {Object} object The object to modify.
 * @param {Array|string} path The path of the property to set.
 * @param {*} value The value to set.
 * @param {Function} [customizer] The function to customize assigned values.
 * @returns {Object} Returns `object`.
 * @example
 *
 * var object = {};
 *
 * _.setWith(object, '[0][1]', 'a', Object);
 * // => { '0': { '1': 'a' } }
 */
function setWith(object, path, value, customizer) {
  customizer = typeof customizer == 'function' ? customizer : undefined;
  return object == null ? object : baseSet(object, path, value, customizer);
}

export default setWith;


code:
import arrayShuffle from './_arrayShuffle.js';
import baseShuffle from './_baseShuffle.js';
import isArray from './isArray.js';

/**
 * Creates an array of shuffled values, using a version of the
 * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to shuffle.
 * @returns {Array} Returns the new shuffled array.
 * @example
 *
 * _.shuffle([1, 2, 3, 4]);
 * // => [4, 1, 3, 2]
 */
function shuffle(collection) {
  var func = isArray(collection) ? arrayShuffle : baseShuffle;
  return func(collection);
}

export default shuffle;


code:
import baseKeys from './_baseKeys.js';
import getTag from './_getTag.js';
import isArrayLike from './isArrayLike.js';
import isString from './isString.js';
import stringSize from './_stringSize.js';

/** `Object#toString` result references. */
var mapTag = '[object Map]',
    setTag = '[object Set]';

/**
 * Gets the size of `collection` by returning its length for array-like
 * values or the number of own enumerable string keyed properties for objects.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object|string} collection The collection to inspect.
 * @returns {number} Returns the collection size.
 * @example
 *
 * _.size([1, 2, 3]);
 * // => 3
 *
 * _.size({ 'a': 1, 'b': 2 });
 * // => 2
 *
 * _.size('pebbles');
 * // => 7
 */
function size(collection) {
  if (collection == null) {
    return 0;
  }
  if (isArrayLike(collection)) {
    return isString(collection) ? stringSize(collection) : collection.length;
  }
  var tag = getTag(collection);
  if (tag == mapTag || tag == setTag) {
    return collection.size;
  }
  return baseKeys(collection).length;
}

export default size;


code:
import baseSlice from './_baseSlice.js';
import isIterateeCall from './_isIterateeCall.js';
import toInteger from './toInteger.js';

/**
 * Creates a slice of `array` from `start` up to, but not including, `end`.
 *
 * **Note:** This method is used instead of
 * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
 * returned.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Array
 * @param {Array} array The array to slice.
 * @param {number} [start=0] The start position.
 * @param {number} [end=array.length] The end position.
 * @returns {Array} Returns the slice of `array`.
 */
function slice(array, start, end) {
  var length = array == null ? 0 : array.length;
  if (!length) {
    return [];
  }
  if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
    start = 0;
    end = length;
  }
  else {
    start = start == null ? 0 : toInteger(start);
    end = end === undefined ? length : toInteger(end);
  }
  return baseSlice(array, start, end);
}

export default slice;


code:
import createCompounder from './_createCompounder.js';

/**
 * Converts `string` to
 * [snake case](https://en.wikipedia.org/wiki/Snake_case).
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the snake cased string.
 * @example
 *
 * _.snakeCase('Foo Bar');
 * // => 'foo_bar'
 *
 * _.snakeCase('fooBar');
 * // => 'foo_bar'
 *
 * _.snakeCase('--FOO-BAR--');
 * // => 'foo_bar'
 */
var snakeCase = createCompounder(function(result, word, index) {
  return result + (index ? '_' : '') + word.toLowerCase();
});

export default snakeCase;


code:
import arraySome from './_arraySome.js';
import baseIteratee from './_baseIteratee.js';
import baseSome from './_baseSome.js';
import isArray from './isArray.js';
import isIterateeCall from './_isIterateeCall.js';

/**
 * Checks if `predicate` returns truthy for **any** element of `collection`.
 * Iteration is stopped once `predicate` returns truthy. The predicate is
 * invoked with three arguments: (value, index|key, collection).
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to iterate over.
 * @param {Function} [predicate=_.identity] The function invoked per iteration.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {boolean} Returns `true` if any element passes the predicate check,
 *  else `false`.
 * @example
 *
 * _.some([null, 0, 'yes', false], Boolean);
 * // => true
 *
 * var users = [
 *   { 'user': 'barney', 'active': true },
 *   { 'user': 'fred',   'active': false }
 * ];
 *
 * // The `_.matches` iteratee shorthand.
 * _.some(users, { 'user': 'barney', 'active': false });
 * // => false
 *
 * // The `_.matchesProperty` iteratee shorthand.
 * _.some(users, ['active', false]);
 * // => true
 *
 * // The `_.property` iteratee shorthand.
 * _.some(users, 'active');
 * // => true
 */
function some(collection, predicate, guard) {
  var func = isArray(collection) ? arraySome : baseSome;
  if (guard && isIterateeCall(collection, predicate, guard)) {
    predicate = undefined;
  }
  return func(collection, baseIteratee(predicate, 3));
}

export default some;


code:
import baseFlatten from './_baseFlatten.js';
import baseOrderBy from './_baseOrderBy.js';
import baseRest from './_baseRest.js';
import isIterateeCall from './_isIterateeCall.js';

/**
 * Creates an array of elements, sorted in ascending order by the results of
 * running each element in a collection thru each iteratee. This method
 * performs a stable sort, that is, it preserves the original sort order of
 * equal elements. The iteratees are invoked with one argument: (value).
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Collection
 * @param {Array|Object} collection The collection to iterate over.
 * @param {...(Function|Function[])} [iteratees=[_.identity]]
 *  The iteratees to sort by.
 * @returns {Array} Returns the new sorted array.
 * @example
 *
 * var users = [
 *   { 'user': 'fred',   'age': 48 },
 *   { 'user': 'barney', 'age': 36 },
 *   { 'user': 'fred',   'age': 30 },
 *   { 'user': 'barney', 'age': 34 }
 * ];
 *
 * _.sortBy(users, [function(o) { return o.user; }]);
 * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]
 *
 * _.sortBy(users, ['user', 'age']);
 * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]
 */
var sortBy = baseRest(function(collection, iteratees) {
  if (collection == null) {
    return [];
  }
  var length = iteratees.length;
  if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
    iteratees = [];
  } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
    iteratees = [iteratees[0]];
  }
  return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
});

export default sortBy;


code:
import baseSortedIndex from './_baseSortedIndex.js';

/**
 * Uses a binary search to determine the lowest index at which `value`
 * should be inserted into `array` in order to maintain its sort order.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Array
 * @param {Array} array The sorted array to inspect.
 * @param {*} value The value to evaluate.
 * @returns {number} Returns the index at which `value` should be inserted
 *  into `array`.
 * @example
 *
 * _.sortedIndex([30, 50], 40);
 * // => 1
 */
function sortedIndex(array, value) {
  return baseSortedIndex(array, value);
}

export default sortedIndex;


code:
import baseIteratee from './_baseIteratee.js';
import baseSortedIndexBy from './_baseSortedIndexBy.js';

/**
 * This method is like `_.sortedIndex` except that it accepts `iteratee`
 * which is invoked for `value` and each element of `array` to compute their
 * sort ranking. The iteratee is invoked with one argument: (value).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The sorted array to inspect.
 * @param {*} value The value to evaluate.
 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
 * @returns {number} Returns the index at which `value` should be inserted
 *  into `array`.
 * @example
 *
 * var objects = [{ 'x': 4 }, { 'x': 5 }];
 *
 * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
 * // => 0
 *
 * // The `_.property` iteratee shorthand.
 * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
 * // => 0
 */
function sortedIndexBy(array, value, iteratee) {
  return baseSortedIndexBy(array, value, baseIteratee(iteratee, 2));
}

export default sortedIndexBy;


code:
import baseSortedIndex from './_baseSortedIndex.js';
import eq from './eq.js';

/**
 * This method is like `_.indexOf` except that it performs a binary
 * search on a sorted `array`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @param {*} value The value to search for.
 * @returns {number} Returns the index of the matched value, else `-1`.
 * @example
 *
 * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
 * // => 1
 */
function sortedIndexOf(array, value) {
  var length = array == null ? 0 : array.length;
  if (length) {
    var index = baseSortedIndex(array, value);
    if (index < length && eq(array[index], value)) {
      return index;
    }
  }
  return -1;
}

export default sortedIndexOf;


code:
import baseSortedIndex from './_baseSortedIndex.js';

/**
 * This method is like `_.sortedIndex` except that it returns the highest
 * index at which `value` should be inserted into `array` in order to
 * maintain its sort order.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Array
 * @param {Array} array The sorted array to inspect.
 * @param {*} value The value to evaluate.
 * @returns {number} Returns the index at which `value` should be inserted
 *  into `array`.
 * @example
 *
 * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
 * // => 4
 */
function sortedLastIndex(array, value) {
  return baseSortedIndex(array, value, true);
}

export default sortedLastIndex;


code:
import baseIteratee from './_baseIteratee.js';
import baseSortedIndexBy from './_baseSortedIndexBy.js';

/**
 * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
 * which is invoked for `value` and each element of `array` to compute their
 * sort ranking. The iteratee is invoked with one argument: (value).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The sorted array to inspect.
 * @param {*} value The value to evaluate.
 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
 * @returns {number} Returns the index at which `value` should be inserted
 *  into `array`.
 * @example
 *
 * var objects = [{ 'x': 4 }, { 'x': 5 }];
 *
 * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
 * // => 1
 *
 * // The `_.property` iteratee shorthand.
 * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
 * // => 1
 */
function sortedLastIndexBy(array, value, iteratee) {
  return baseSortedIndexBy(array, value, baseIteratee(iteratee, 2), true);
}

export default sortedLastIndexBy;


code:
import baseSortedIndex from './_baseSortedIndex.js';
import eq from './eq.js';

/**
 * This method is like `_.lastIndexOf` except that it performs a binary
 * search on a sorted `array`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @param {*} value The value to search for.
 * @returns {number} Returns the index of the matched value, else `-1`.
 * @example
 *
 * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
 * // => 3
 */
function sortedLastIndexOf(array, value) {
  var length = array == null ? 0 : array.length;
  if (length) {
    var index = baseSortedIndex(array, value, true) - 1;
    if (eq(array[index], value)) {
      return index;
    }
  }
  return -1;
}

export default sortedLastIndexOf;


code:
import baseSortedUniq from './_baseSortedUniq.js';

/**
 * This method is like `_.uniq` except that it's designed and optimized
 * for sorted arrays.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @returns {Array} Returns the new duplicate free array.
 * @example
 *
 * _.sortedUniq([1, 1, 2]);
 * // => [1, 2]
 */
function sortedUniq(array) {
  return (array && array.length)
    ? baseSortedUniq(array)
    : [];
}

export default sortedUniq;


code:
import baseIteratee from './_baseIteratee.js';
import baseSortedUniq from './_baseSortedUniq.js';

/**
 * This method is like `_.uniqBy` except that it's designed and optimized
 * for sorted arrays.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @param {Function} [iteratee] The iteratee invoked per element.
 * @returns {Array} Returns the new duplicate free array.
 * @example
 *
 * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
 * // => [1.1, 2.3]
 */
function sortedUniqBy(array, iteratee) {
  return (array && array.length)
    ? baseSortedUniq(array, baseIteratee(iteratee, 2))
    : [];
}

export default sortedUniqBy;


code:
import baseToString from './_baseToString.js';
import castSlice from './_castSlice.js';
import hasUnicode from './_hasUnicode.js';
import isIterateeCall from './_isIterateeCall.js';
import isRegExp from './isRegExp.js';
import stringToArray from './_stringToArray.js';
import toString from './toString.js';

/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295;

/**
 * Splits `string` by `separator`.
 *
 * **Note:** This method is based on
 * [`String#split`](https://mdn.io/String/split).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to split.
 * @param {RegExp|string} separator The separator pattern to split by.
 * @param {number} [limit] The length to truncate results to.
 * @returns {Array} Returns the string segments.
 * @example
 *
 * _.split('a-b-c', '-', 2);
 * // => ['a', 'b']
 */
function split(string, separator, limit) {
  if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
    separator = limit = undefined;
  }
  limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
  if (!limit) {
    return [];
  }
  string = toString(string);
  if (string && (
        typeof separator == 'string' ||
        (separator != null && !isRegExp(separator))
      )) {
    separator = baseToString(separator);
    if (!separator && hasUnicode(string)) {
      return castSlice(stringToArray(string), 0, limit);
    }
  }
  return string.split(separator, limit);
}

export default split;


code:
import apply from './_apply.js';
import arrayPush from './_arrayPush.js';
import baseRest from './_baseRest.js';
import castSlice from './_castSlice.js';
import toInteger from './toInteger.js';

/** Error message constants. */
var FUNC_ERROR_TEXT = 'Expected a function';

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max;

/**
 * Creates a function that invokes `func` with the `this` binding of the
 * create function and an array of arguments much like
 * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
 *
 * **Note:** This method is based on the
 * [spread operator](https://mdn.io/spread_operator).
 *
 * @static
 * @memberOf _
 * @since 3.2.0
 * @category Function
 * @param {Function} func The function to spread arguments over.
 * @param {number} [start=0] The start position of the spread.
 * @returns {Function} Returns the new function.
 * @example
 *
 * var say = _.spread(function(who, what) {
 *   return who + ' says ' + what;
 * });
 *
 * say(['fred', 'hello']);
 * // => 'fred says hello'
 *
 * var numbers = Promise.all([
 *   Promise.resolve(40),
 *   Promise.resolve(36)
 * ]);
 *
 * numbers.then(_.spread(function(x, y) {
 *   return x + y;
 * }));
 * // => a Promise of 76
 */
function spread(func, start) {
  if (typeof func != 'function') {
    throw new TypeError(FUNC_ERROR_TEXT);
  }
  start = start == null ? 0 : nativeMax(toInteger(start), 0);
  return baseRest(function(args) {
    var array = args[start],
        otherArgs = castSlice(args, 0, start);

    if (array) {
      arrayPush(otherArgs, array);
    }
    return apply(func, this, otherArgs);
  });
}

export default spread;


code:
import createCompounder from './_createCompounder.js';
import upperFirst from './upperFirst.js';

/**
 * Converts `string` to
 * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
 *
 * @static
 * @memberOf _
 * @since 3.1.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the start cased string.
 * @example
 *
 * _.startCase('--foo-bar--');
 * // => 'Foo Bar'
 *
 * _.startCase('fooBar');
 * // => 'Foo Bar'
 *
 * _.startCase('__FOO_BAR__');
 * // => 'FOO BAR'
 */
var startCase = createCompounder(function(result, word, index) {
  return result + (index ? ' ' : '') + upperFirst(word);
});

export default startCase;


code:
import baseClamp from './_baseClamp.js';
import baseToString from './_baseToString.js';
import toInteger from './toInteger.js';
import toString from './toString.js';

/**
 * Checks if `string` starts with the given target string.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category String
 * @param {string} [string=''] The string to inspect.
 * @param {string} [target] The string to search for.
 * @param {number} [position=0] The position to search from.
 * @returns {boolean} Returns `true` if `string` starts with `target`,
 *  else `false`.
 * @example
 *
 * _.startsWith('abc', 'a');
 * // => true
 *
 * _.startsWith('abc', 'b');
 * // => false
 *
 * _.startsWith('abc', 'b', 1);
 * // => true
 */
function startsWith(string, target, position) {
  string = toString(string);
  position = position == null
    ? 0
    : baseClamp(toInteger(position), 0, string.length);

  target = baseToString(target);
  return string.slice(position, position + target.length) == target;
}

export default startsWith;


code:
import camelCase from './camelCase.js';
import capitalize from './capitalize.js';
import deburr from './deburr.js';
import endsWith from './endsWith.js';
import escape from './escape.js';
import escapeRegExp from './escapeRegExp.js';
import kebabCase from './kebabCase.js';
import lowerCase from './lowerCase.js';
import lowerFirst from './lowerFirst.js';
import pad from './pad.js';
import padEnd from './padEnd.js';
import padStart from './padStart.js';
import parseInt from './parseInt.js';
import repeat from './repeat.js';
import replace from './replace.js';
import snakeCase from './snakeCase.js';
import split from './split.js';
import startCase from './startCase.js';
import startsWith from './startsWith.js';
import template from './template.js';
import templateSettings from './templateSettings.js';
import toLower from './toLower.js';
import toUpper from './toUpper.js';
import trim from './trim.js';
import trimEnd from './trimEnd.js';
import trimStart from './trimStart.js';
import truncate from './truncate.js';
import unescape from './unescape.js';
import upperCase from './upperCase.js';
import upperFirst from './upperFirst.js';
import words from './words.js';

export default {
  camelCase, capitalize, deburr, endsWith, escape,
  escapeRegExp, kebabCase, lowerCase, lowerFirst, pad,
  padEnd, padStart, parseInt, repeat, replace,
  snakeCase, split, startCase, startsWith, template,
  templateSettings, toLower, toUpper, trim, trimEnd,
  trimStart, truncate, unescape, upperCase, upperFirst,
  words
};


code:
export { default as camelCase } from './camelCase.js';
export { default as capitalize } from './capitalize.js';
export { default as deburr } from './deburr.js';
export { default as endsWith } from './endsWith.js';
export { default as escape } from './escape.js';
export { default as escapeRegExp } from './escapeRegExp.js';
export { default as kebabCase } from './kebabCase.js';
export { default as lowerCase } from './lowerCase.js';
export { default as lowerFirst } from './lowerFirst.js';
export { default as pad } from './pad.js';
export { default as padEnd } from './padEnd.js';
export { default as padStart } from './padStart.js';
export { default as parseInt } from './parseInt.js';
export { default as repeat } from './repeat.js';
export { default as replace } from './replace.js';
export { default as snakeCase } from './snakeCase.js';
export { default as split } from './split.js';
export { default as startCase } from './startCase.js';
export { default as startsWith } from './startsWith.js';
export { default as template } from './template.js';
export { default as templateSettings } from './templateSettings.js';
export { default as toLower } from './toLower.js';
export { default as toUpper } from './toUpper.js';
export { default as trim } from './trim.js';
export { default as trimEnd } from './trimEnd.js';
export { default as trimStart } from './trimStart.js';
export { default as truncate } from './truncate.js';
export { default as unescape } from './unescape.js';
export { default as upperCase } from './upperCase.js';
export { default as upperFirst } from './upperFirst.js';
export { default as words } from './words.js';
export { default } from './string.default.js';


code:
/**
 * This method returns a new empty array.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {Array} Returns the new empty array.
 * @example
 *
 * var arrays = _.times(2, _.stubArray);
 *
 * console.log(arrays);
 * // => [[], []]
 *
 * console.log(arrays[0] === arrays[1]);
 * // => false
 */
function stubArray() {
  return [];
}

export default stubArray;


code:
/**
 * This method returns `false`.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {boolean} Returns `false`.
 * @example
 *
 * _.times(2, _.stubFalse);
 * // => [false, false]
 */
function stubFalse() {
  return false;
}

export default stubFalse;


code:
/**
 * This method returns a new empty object.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {Object} Returns the new empty object.
 * @example
 *
 * var objects = _.times(2, _.stubObject);
 *
 * console.log(objects);
 * // => [{}, {}]
 *
 * console.log(objects[0] === objects[1]);
 * // => false
 */
function stubObject() {
  return {};
}

export default stubObject;


code:
/**
 * This method returns an empty string.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {string} Returns the empty string.
 * @example
 *
 * _.times(2, _.stubString);
 * // => ['', '']
 */
function stubString() {
  return '';
}

export default stubString;


code:
/**
 * This method returns `true`.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {boolean} Returns `true`.
 * @example
 *
 * _.times(2, _.stubTrue);
 * // => [true, true]
 */
function stubTrue() {
  return true;
}

export default stubTrue;


code:
import createMathOperation from './_createMathOperation.js';

/**
 * Subtract two numbers.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Math
 * @param {number} minuend The first number in a subtraction.
 * @param {number} subtrahend The second number in a subtraction.
 * @returns {number} Returns the difference.
 * @example
 *
 * _.subtract(6, 4);
 * // => 2
 */
var subtract = createMathOperation(function(minuend, subtrahend) {
  return minuend - subtrahend;
}, 0);

export default subtract;


code:
import baseSum from './_baseSum.js';
import identity from './identity.js';

/**
 * Computes the sum of the values in `array`.
 *
 * @static
 * @memberOf _
 * @since 3.4.0
 * @category Math
 * @param {Array} array The array to iterate over.
 * @returns {number} Returns the sum.
 * @example
 *
 * _.sum([4, 2, 8, 6]);
 * // => 20
 */
function sum(array) {
  return (array && array.length)
    ? baseSum(array, identity)
    : 0;
}

export default sum;


code:
import baseIteratee from './_baseIteratee.js';
import baseSum from './_baseSum.js';

/**
 * This method is like `_.sum` except that it accepts `iteratee` which is
 * invoked for each element in `array` to generate the value to be summed.
 * The iteratee is invoked with one argument: (value).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Math
 * @param {Array} array The array to iterate over.
 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
 * @returns {number} Returns the sum.
 * @example
 *
 * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
 *
 * _.sumBy(objects, function(o) { return o.n; });
 * // => 20
 *
 * // The `_.property` iteratee shorthand.
 * _.sumBy(objects, 'n');
 * // => 20
 */
function sumBy(array, iteratee) {
  return (array && array.length)
    ? baseSum(array, baseIteratee(iteratee, 2))
    : 0;
}

export default sumBy;


code:
import baseSlice from './_baseSlice.js';

/**
 * Gets all but the first element of `array`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to query.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * _.tail([1, 2, 3]);
 * // => [2, 3]
 */
function tail(array) {
  var length = array == null ? 0 : array.length;
  return length ? baseSlice(array, 1, length) : [];
}

export default tail;


code:
import baseSlice from './_baseSlice.js';
import toInteger from './toInteger.js';

/**
 * Creates a slice of `array` with `n` elements taken from the beginning.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Array
 * @param {Array} array The array to query.
 * @param {number} [n=1] The number of elements to take.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * _.take([1, 2, 3]);
 * // => [1]
 *
 * _.take([1, 2, 3], 2);
 * // => [1, 2]
 *
 * _.take([1, 2, 3], 5);
 * // => [1, 2, 3]
 *
 * _.take([1, 2, 3], 0);
 * // => []
 */
function take(array, n, guard) {
  if (!(array && array.length)) {
    return [];
  }
  n = (guard || n === undefined) ? 1 : toInteger(n);
  return baseSlice(array, 0, n < 0 ? 0 : n);
}

export default take;


code:
import baseSlice from './_baseSlice.js';
import toInteger from './toInteger.js';

/**
 * Creates a slice of `array` with `n` elements taken from the end.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Array
 * @param {Array} array The array to query.
 * @param {number} [n=1] The number of elements to take.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * _.takeRight([1, 2, 3]);
 * // => [3]
 *
 * _.takeRight([1, 2, 3], 2);
 * // => [2, 3]
 *
 * _.takeRight([1, 2, 3], 5);
 * // => [1, 2, 3]
 *
 * _.takeRight([1, 2, 3], 0);
 * // => []
 */
function takeRight(array, n, guard) {
  var length = array == null ? 0 : array.length;
  if (!length) {
    return [];
  }
  n = (guard || n === undefined) ? 1 : toInteger(n);
  n = length - n;
  return baseSlice(array, n < 0 ? 0 : n, length);
}

export default takeRight;


code:
import baseIteratee from './_baseIteratee.js';
import baseWhile from './_baseWhile.js';

/**
 * Creates a slice of `array` with elements taken from the end. Elements are
 * taken until `predicate` returns falsey. The predicate is invoked with
 * three arguments: (value, index, array).
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Array
 * @param {Array} array The array to query.
 * @param {Function} [predicate=_.identity] The function invoked per iteration.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * var users = [
 *   { 'user': 'barney',  'active': true },
 *   { 'user': 'fred',    'active': false },
 *   { 'user': 'pebbles', 'active': false }
 * ];
 *
 * _.takeRightWhile(users, function(o) { return !o.active; });
 * // => objects for ['fred', 'pebbles']
 *
 * // The `_.matches` iteratee shorthand.
 * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
 * // => objects for ['pebbles']
 *
 * // The `_.matchesProperty` iteratee shorthand.
 * _.takeRightWhile(users, ['active', false]);
 * // => objects for ['fred', 'pebbles']
 *
 * // The `_.property` iteratee shorthand.
 * _.takeRightWhile(users, 'active');
 * // => []
 */
function takeRightWhile(array, predicate) {
  return (array && array.length)
    ? baseWhile(array, baseIteratee(predicate, 3), false, true)
    : [];
}

export default takeRightWhile;


code:
import baseIteratee from './_baseIteratee.js';
import baseWhile from './_baseWhile.js';

/**
 * Creates a slice of `array` with elements taken from the beginning. Elements
 * are taken until `predicate` returns falsey. The predicate is invoked with
 * three arguments: (value, index, array).
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Array
 * @param {Array} array The array to query.
 * @param {Function} [predicate=_.identity] The function invoked per iteration.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * var users = [
 *   { 'user': 'barney',  'active': false },
 *   { 'user': 'fred',    'active': false },
 *   { 'user': 'pebbles', 'active': true }
 * ];
 *
 * _.takeWhile(users, function(o) { return !o.active; });
 * // => objects for ['barney', 'fred']
 *
 * // The `_.matches` iteratee shorthand.
 * _.takeWhile(users, { 'user': 'barney', 'active': false });
 * // => objects for ['barney']
 *
 * // The `_.matchesProperty` iteratee shorthand.
 * _.takeWhile(users, ['active', false]);
 * // => objects for ['barney', 'fred']
 *
 * // The `_.property` iteratee shorthand.
 * _.takeWhile(users, 'active');
 * // => []
 */
function takeWhile(array, predicate) {
  return (array && array.length)
    ? baseWhile(array, baseIteratee(predicate, 3))
    : [];
}

export default takeWhile;


code:
/**
 * This method invokes `interceptor` and returns `value`. The interceptor
 * is invoked with one argument; (value). The purpose of this method is to
 * "tap into" a method chain sequence in order to modify intermediate results.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Seq
 * @param {*} value The value to provide to `interceptor`.
 * @param {Function} interceptor The function to invoke.
 * @returns {*} Returns `value`.
 * @example
 *
 * _([1, 2, 3])
 *  .tap(function(array) {
 *    // Mutate input array.
 *    array.pop();
 *  })
 *  .reverse()
 *  .value();
 * // => [2, 1]
 */
function tap(value, interceptor) {
  interceptor(value);
  return value;
}

export default tap;


code:
import assignInWith from './assignInWith.js';
import attempt from './attempt.js';
import baseValues from './_baseValues.js';
import customDefaultsAssignIn from './_customDefaultsAssignIn.js';
import escapeStringChar from './_escapeStringChar.js';
import isError from './isError.js';
import isIterateeCall from './_isIterateeCall.js';
import keys from './keys.js';
import reInterpolate from './_reInterpolate.js';
import templateSettings from './templateSettings.js';
import toString from './toString.js';

/** Error message constants. */
var INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';

/** Used to match empty string literals in compiled template source. */
var reEmptyStringLeading = /\b__p \+= '';/g,
    reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
    reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

/**
 * Used to validate the `validate` option in `_.template` variable.
 *
 * Forbids characters which could potentially change the meaning of the function argument definition:
 * - "()," (modification of function parameters)
 * - "=" (default value)
 * - "[]{}" (destructuring of function parameters)
 * - "/" (beginning of a comment)
 * - whitespace
 */
var reForbiddenIdentifierChars = /[()=,{}\[\]\/\s]/;

/**
 * Used to match
 * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
 */
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

/** Used to ensure capturing order of template delimiters. */
var reNoMatch = /($^)/;

/** Used to match unescaped characters in compiled string literals. */
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

/** Used for built-in method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Creates a compiled template function that can interpolate data properties
 * in "interpolate" delimiters, HTML-escape interpolated data properties in
 * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
 * properties may be accessed as free variables in the template. If a setting
 * object is given, it takes precedence over `_.templateSettings` values.
 *
 * **Note:** In the development build `_.template` utilizes
 * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
 * for easier debugging.
 *
 * For more information on precompiling templates see
 * [lodash's custom builds documentation](https://lodash.com/custom-builds).
 *
 * For more information on Chrome extension sandboxes see
 * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category String
 * @param {string} [string=''] The template string.
 * @param {Object} [options={}] The options object.
 * @param {RegExp} [options.escape=_.templateSettings.escape]
 *  The HTML "escape" delimiter.
 * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
 *  The "evaluate" delimiter.
 * @param {Object} [options.imports=_.templateSettings.imports]
 *  An object to import into the template as free variables.
 * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
 *  The "interpolate" delimiter.
 * @param {string} [options.sourceURL='templateSources[n]']
 *  The sourceURL of the compiled template.
 * @param {string} [options.variable='obj']
 *  The data object variable name.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {Function} Returns the compiled template function.
 * @example
 *
 * // Use the "interpolate" delimiter to create a compiled template.
 * var compiled = _.template('hello <%= user %>!');
 * compiled({ 'user': 'fred' });
 * // => 'hello fred!'
 *
 * // Use the HTML "escape" delimiter to escape data property values.
 * var compiled = _.template('<%- value %>');
 * compiled({ 'value': '


code:
import escape from './escape.js';
import reEscape from './_reEscape.js';
import reEvaluate from './_reEvaluate.js';
import reInterpolate from './_reInterpolate.js';

/**
 * By default, the template delimiters used by lodash are like those in
 * embedded Ruby (ERB) as well as ES2015 template strings. Change the
 * following template settings to use alternative delimiters.
 *
 * @static
 * @memberOf _
 * @type {Object}
 */
var templateSettings = {

  /**
   * Used to detect `data` property values to be HTML-escaped.
   *
   * @memberOf _.templateSettings
   * @type {RegExp}
   */
  'escape': reEscape,

  /**
   * Used to detect code to be evaluated.
   *
   * @memberOf _.templateSettings
   * @type {RegExp}
   */
  'evaluate': reEvaluate,

  /**
   * Used to detect `data` property values to inject.
   *
   * @memberOf _.templateSettings
   * @type {RegExp}
   */
  'interpolate': reInterpolate,

  /**
   * Used to reference the data object in the template text.
   *
   * @memberOf _.templateSettings
   * @type {string}
   */
  'variable': '',

  /**
   * Used to import variables into the compiled template.
   *
   * @memberOf _.templateSettings
   * @type {Object}
   */
  'imports': {

    /**
     * A reference to the `lodash` function.
     *
     * @memberOf _.templateSettings.imports
     * @type {Function}
     */
    '_': { 'escape': escape }
  }
};

export default templateSettings;


code:
import debounce from './debounce.js';
import isObject from './isObject.js';

/** Error message constants. */
var FUNC_ERROR_TEXT = 'Expected a function';

/**
 * Creates a throttled function that only invokes `func` at most once per
 * every `wait` milliseconds. The throttled function comes with a `cancel`
 * method to cancel delayed `func` invocations and a `flush` method to
 * immediately invoke them. Provide `options` to indicate whether `func`
 * should be invoked on the leading and/or trailing edge of the `wait`
 * timeout. The `func` is invoked with the last arguments provided to the
 * throttled function. Subsequent calls to the throttled function return the
 * result of the last `func` invocation.
 *
 * **Note:** If `leading` and `trailing` options are `true`, `func` is
 * invoked on the trailing edge of the timeout only if the throttled function
 * is invoked more than once during the `wait` timeout.
 *
 * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
 * until to the next tick, similar to `setTimeout` with a timeout of `0`.
 *
 * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
 * for details over the differences between `_.throttle` and `_.debounce`.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Function
 * @param {Function} func The function to throttle.
 * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
 * @param {Object} [options={}] The options object.
 * @param {boolean} [options.leading=true]
 *  Specify invoking on the leading edge of the timeout.
 * @param {boolean} [options.trailing=true]
 *  Specify invoking on the trailing edge of the timeout.
 * @returns {Function} Returns the new throttled function.
 * @example
 *
 * // Avoid excessively updating the position while scrolling.
 * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
 *
 * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
 * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
 * jQuery(element).on('click', throttled);
 *
 * // Cancel the trailing throttled invocation.
 * jQuery(window).on('popstate', throttled.cancel);
 */
function throttle(func, wait, options) {
  var leading = true,
      trailing = true;

  if (typeof func != 'function') {
    throw new TypeError(FUNC_ERROR_TEXT);
  }
  if (isObject(options)) {
    leading = 'leading' in options ? !!options.leading : leading;
    trailing = 'trailing' in options ? !!options.trailing : trailing;
  }
  return debounce(func, wait, {
    'leading': leading,
    'maxWait': wait,
    'trailing': trailing
  });
}

export default throttle;


code:
/**
 * This method is like `_.tap` except that it returns the result of `interceptor`.
 * The purpose of this method is to "pass thru" values replacing intermediate
 * results in a method chain sequence.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Seq
 * @param {*} value The value to provide to `interceptor`.
 * @param {Function} interceptor The function to invoke.
 * @returns {*} Returns the result of `interceptor`.
 * @example
 *
 * _('  abc  ')
 *  .chain()
 *  .trim()
 *  .thru(function(value) {
 *    return [value];
 *  })
 *  .value();
 * // => ['abc']
 */
function thru(value, interceptor) {
  return interceptor(value);
}

export default thru;


code:
import baseTimes from './_baseTimes.js';
import castFunction from './_castFunction.js';
import toInteger from './toInteger.js';

/** Used as references for various `Number` constants. */
var MAX_SAFE_INTEGER = 9007199254740991;

/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMin = Math.min;

/**
 * Invokes the iteratee `n` times, returning an array of the results of
 * each invocation. The iteratee is invoked with one argument; (index).
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Util
 * @param {number} n The number of times to invoke `iteratee`.
 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
 * @returns {Array} Returns the array of results.
 * @example
 *
 * _.times(3, String);
 * // => ['0', '1', '2']
 *
 *  _.times(4, _.constant(0));
 * // => [0, 0, 0, 0]
 */
function times(n, iteratee) {
  n = toInteger(n);
  if (n < 1 || n > MAX_SAFE_INTEGER) {
    return [];
  }
  var index = MAX_ARRAY_LENGTH,
      length = nativeMin(n, MAX_ARRAY_LENGTH);

  iteratee = castFunction(iteratee);
  n -= MAX_ARRAY_LENGTH;

  var result = baseTimes(length, iteratee);
  while (++index < n) {
    iteratee(index);
  }
  return result;
}

export default times;


code:
import Symbol from './_Symbol.js';
import copyArray from './_copyArray.js';
import getTag from './_getTag.js';
import isArrayLike from './isArrayLike.js';
import isString from './isString.js';
import iteratorToArray from './_iteratorToArray.js';
import mapToArray from './_mapToArray.js';
import setToArray from './_setToArray.js';
import stringToArray from './_stringToArray.js';
import values from './values.js';

/** `Object#toString` result references. */
var mapTag = '[object Map]',
    setTag = '[object Set]';

/** Built-in value references. */
var symIterator = Symbol ? Symbol.iterator : undefined;

/**
 * Converts `value` to an array.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {Array} Returns the converted array.
 * @example
 *
 * _.toArray({ 'a': 1, 'b': 2 });
 * // => [1, 2]
 *
 * _.toArray('abc');
 * // => ['a', 'b', 'c']
 *
 * _.toArray(1);
 * // => []
 *
 * _.toArray(null);
 * // => []
 */
function toArray(value) {
  if (!value) {
    return [];
  }
  if (isArrayLike(value)) {
    return isString(value) ? stringToArray(value) : copyArray(value);
  }
  if (symIterator && value[symIterator]) {
    return iteratorToArray(value[symIterator]());
  }
  var tag = getTag(value),
      func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);

  return func(value);
}

export default toArray;


code:
import toNumber from './toNumber.js';

/** Used as references for various `Number` constants. */
var INFINITY = 1 / 0,
    MAX_INTEGER = 1.7976931348623157e+308;

/**
 * Converts `value` to a finite number.
 *
 * @static
 * @memberOf _
 * @since 4.12.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {number} Returns the converted number.
 * @example
 *
 * _.toFinite(3.2);
 * // => 3.2
 *
 * _.toFinite(Number.MIN_VALUE);
 * // => 5e-324
 *
 * _.toFinite(Infinity);
 * // => 1.7976931348623157e+308
 *
 * _.toFinite('3.2');
 * // => 3.2
 */
function toFinite(value) {
  if (!value) {
    return value === 0 ? value : 0;
  }
  value = toNumber(value);
  if (value === INFINITY || value === -INFINITY) {
    var sign = (value < 0 ? -1 : 1);
    return sign * MAX_INTEGER;
  }
  return value === value ? value : 0;
}

export default toFinite;


code:
import toFinite from './toFinite.js';

/**
 * Converts `value` to an integer.
 *
 * **Note:** This method is loosely based on
 * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {number} Returns the converted integer.
 * @example
 *
 * _.toInteger(3.2);
 * // => 3
 *
 * _.toInteger(Number.MIN_VALUE);
 * // => 0
 *
 * _.toInteger(Infinity);
 * // => 1.7976931348623157e+308
 *
 * _.toInteger('3.2');
 * // => 3
 */
function toInteger(value) {
  var result = toFinite(value),
      remainder = result % 1;

  return result === result ? (remainder ? result - remainder : result) : 0;
}

export default toInteger;


code:
/**
 * Enables the wrapper to be iterable.
 *
 * @name Symbol.iterator
 * @memberOf _
 * @since 4.0.0
 * @category Seq
 * @returns {Object} Returns the wrapper object.
 * @example
 *
 * var wrapped = _([1, 2]);
 *
 * wrapped[Symbol.iterator]() === wrapped;
 * // => true
 *
 * Array.from(wrapped);
 * // => [1, 2]
 */
function wrapperToIterator() {
  return this;
}

export default wrapperToIterator;


code: export { default } from './wrapperValue.js'


code:
import baseClamp from './_baseClamp.js';
import toInteger from './toInteger.js';

/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295;

/**
 * Converts `value` to an integer suitable for use as the length of an
 * array-like object.
 *
 * **Note:** This method is based on
 * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {number} Returns the converted integer.
 * @example
 *
 * _.toLength(3.2);
 * // => 3
 *
 * _.toLength(Number.MIN_VALUE);
 * // => 0
 *
 * _.toLength(Infinity);
 * // => 4294967295
 *
 * _.toLength('3.2');
 * // => 3
 */
function toLength(value) {
  return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
}

export default toLength;


code:
import toString from './toString.js';

/**
 * Converts `string`, as a whole, to lower case just like
 * [String#toLowerCase](https://mdn.io/toLowerCase).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the lower cased string.
 * @example
 *
 * _.toLower('--Foo-Bar--');
 * // => '--foo-bar--'
 *
 * _.toLower('fooBar');
 * // => 'foobar'
 *
 * _.toLower('__FOO_BAR__');
 * // => '__foo_bar__'
 */
function toLower(value) {
  return toString(value).toLowerCase();
}

export default toLower;


code:
import baseTrim from './_baseTrim.js';
import isObject from './isObject.js';
import isSymbol from './isSymbol.js';

/** Used as references for various `Number` constants. */
var NAN = 0 / 0;

/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;

/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;

/** Built-in method references without a dependency on `root`. */
var freeParseInt = parseInt;

/**
 * Converts `value` to a number.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to process.
 * @returns {number} Returns the number.
 * @example
 *
 * _.toNumber(3.2);
 * // => 3.2
 *
 * _.toNumber(Number.MIN_VALUE);
 * // => 5e-324
 *
 * _.toNumber(Infinity);
 * // => Infinity
 *
 * _.toNumber('3.2');
 * // => 3.2
 */
function toNumber(value) {
  if (typeof value == 'number') {
    return value;
  }
  if (isSymbol(value)) {
    return NAN;
  }
  if (isObject(value)) {
    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
    value = isObject(other) ? (other + '') : other;
  }
  if (typeof value != 'string') {
    return value === 0 ? value : +value;
  }
  value = baseTrim(value);
  var isBinary = reIsBinary.test(value);
  return (isBinary || reIsOctal.test(value))
    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
    : (reIsBadHex.test(value) ? NAN : +value);
}

export default toNumber;


code:
import createToPairs from './_createToPairs.js';
import keys from './keys.js';

/**
 * Creates an array of own enumerable string keyed-value pairs for `object`
 * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
 * entries are returned.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @alias entries
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the key-value pairs.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.toPairs(new Foo);
 * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
 */
var toPairs = createToPairs(keys);

export default toPairs;


code:
import createToPairs from './_createToPairs.js';
import keysIn from './keysIn.js';

/**
 * Creates an array of own and inherited enumerable string keyed-value pairs
 * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
 * or set, its entries are returned.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @alias entriesIn
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the key-value pairs.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.toPairsIn(new Foo);
 * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
 */
var toPairsIn = createToPairs(keysIn);

export default toPairsIn;


code:
import arrayMap from './_arrayMap.js';
import copyArray from './_copyArray.js';
import isArray from './isArray.js';
import isSymbol from './isSymbol.js';
import stringToPath from './_stringToPath.js';
import toKey from './_toKey.js';
import toString from './toString.js';

/**
 * Converts `value` to a property path array.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Util
 * @param {*} value The value to convert.
 * @returns {Array} Returns the new property path array.
 * @example
 *
 * _.toPath('a.b.c');
 * // => ['a', 'b', 'c']
 *
 * _.toPath('a[0].b.c');
 * // => ['a', '0', 'b', 'c']
 */
function toPath(value) {
  if (isArray(value)) {
    return arrayMap(value, toKey);
  }
  return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
}

export default toPath;


code:
import copyObject from './_copyObject.js';
import keysIn from './keysIn.js';

/**
 * Converts `value` to a plain object flattening inherited enumerable string
 * keyed properties of `value` to own properties of the plain object.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {Object} Returns the converted plain object.
 * @example
 *
 * function Foo() {
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.assign({ 'a': 1 }, new Foo);
 * // => { 'a': 1, 'b': 2 }
 *
 * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
 * // => { 'a': 1, 'b': 2, 'c': 3 }
 */
function toPlainObject(value) {
  return copyObject(value, keysIn(value));
}

export default toPlainObject;


code:
import baseClamp from './_baseClamp.js';
import toInteger from './toInteger.js';

/** Used as references for various `Number` constants. */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * Converts `value` to a safe integer. A safe integer can be compared and
 * represented correctly.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {number} Returns the converted integer.
 * @example
 *
 * _.toSafeInteger(3.2);
 * // => 3
 *
 * _.toSafeInteger(Number.MIN_VALUE);
 * // => 0
 *
 * _.toSafeInteger(Infinity);
 * // => 9007199254740991
 *
 * _.toSafeInteger('3.2');
 * // => 3
 */
function toSafeInteger(value) {
  return value
    ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
    : (value === 0 ? value : 0);
}

export default toSafeInteger;


code:
import baseToString from './_baseToString.js';

/**
 * Converts `value` to a string. An empty string is returned for `null`
 * and `undefined` values. The sign of `-0` is preserved.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {string} Returns the converted string.
 * @example
 *
 * _.toString(null);
 * // => ''
 *
 * _.toString(-0);
 * // => '-0'
 *
 * _.toString([1, 2, 3]);
 * // => '1,2,3'
 */
function toString(value) {
  return value == null ? '' : baseToString(value);
}

export default toString;


code:
import toString from './toString.js';

/**
 * Converts `string`, as a whole, to upper case just like
 * [String#toUpperCase](https://mdn.io/toUpperCase).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the upper cased string.
 * @example
 *
 * _.toUpper('--foo-bar--');
 * // => '--FOO-BAR--'
 *
 * _.toUpper('fooBar');
 * // => 'FOOBAR'
 *
 * _.toUpper('__foo_bar__');
 * // => '__FOO_BAR__'
 */
function toUpper(value) {
  return toString(value).toUpperCase();
}

export default toUpper;


code:
import arrayEach from './_arrayEach.js';
import baseCreate from './_baseCreate.js';
import baseForOwn from './_baseForOwn.js';
import baseIteratee from './_baseIteratee.js';
import getPrototype from './_getPrototype.js';
import isArray from './isArray.js';
import isBuffer from './isBuffer.js';
import isFunction from './isFunction.js';
import isObject from './isObject.js';
import isTypedArray from './isTypedArray.js';

/**
 * An alternative to `_.reduce`; this method transforms `object` to a new
 * `accumulator` object which is the result of running each of its own
 * enumerable string keyed properties thru `iteratee`, with each invocation
 * potentially mutating the `accumulator` object. If `accumulator` is not
 * provided, a new object with the same `[[Prototype]]` will be used. The
 * iteratee is invoked with four arguments: (accumulator, value, key, object).
 * Iteratee functions may exit iteration early by explicitly returning `false`.
 *
 * @static
 * @memberOf _
 * @since 1.3.0
 * @category Object
 * @param {Object} object The object to iterate over.
 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
 * @param {*} [accumulator] The custom accumulator value.
 * @returns {*} Returns the accumulated value.
 * @example
 *
 * _.transform([2, 3, 4], function(result, n) {
 *   result.push(n *= n);
 *   return n % 2 == 0;
 * }, []);
 * // => [4, 9]
 *
 * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
 *   (result[value] || (result[value] = [])).push(key);
 * }, {});
 * // => { '1': ['a', 'c'], '2': ['b'] }
 */
function transform(object, iteratee, accumulator) {
  var isArr = isArray(object),
      isArrLike = isArr || isBuffer(object) || isTypedArray(object);

  iteratee = baseIteratee(iteratee, 4);
  if (accumulator == null) {
    var Ctor = object && object.constructor;
    if (isArrLike) {
      accumulator = isArr ? new Ctor : [];
    }
    else if (isObject(object)) {
      accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
    }
    else {
      accumulator = {};
    }
  }
  (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
    return iteratee(accumulator, value, index, object);
  });
  return accumulator;
}

export default transform;


code:
import baseToString from './_baseToString.js';
import baseTrim from './_baseTrim.js';
import castSlice from './_castSlice.js';
import charsEndIndex from './_charsEndIndex.js';
import charsStartIndex from './_charsStartIndex.js';
import stringToArray from './_stringToArray.js';
import toString from './toString.js';

/**
 * Removes leading and trailing whitespace or specified characters from `string`.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category String
 * @param {string} [string=''] The string to trim.
 * @param {string} [chars=whitespace] The characters to trim.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {string} Returns the trimmed string.
 * @example
 *
 * _.trim('  abc  ');
 * // => 'abc'
 *
 * _.trim('-_-abc-_-', '_-');
 * // => 'abc'
 *
 * _.map(['  foo  ', '  bar  '], _.trim);
 * // => ['foo', 'bar']
 */
function trim(string, chars, guard) {
  string = toString(string);
  if (string && (guard || chars === undefined)) {
    return baseTrim(string);
  }
  if (!string || !(chars = baseToString(chars))) {
    return string;
  }
  var strSymbols = stringToArray(string),
      chrSymbols = stringToArray(chars),
      start = charsStartIndex(strSymbols, chrSymbols),
      end = charsEndIndex(strSymbols, chrSymbols) + 1;

  return castSlice(strSymbols, start, end).join('');
}

export default trim;


code:
import baseToString from './_baseToString.js';
import castSlice from './_castSlice.js';
import charsEndIndex from './_charsEndIndex.js';
import stringToArray from './_stringToArray.js';
import toString from './toString.js';
import trimmedEndIndex from './_trimmedEndIndex.js';

/**
 * Removes trailing whitespace or specified characters from `string`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to trim.
 * @param {string} [chars=whitespace] The characters to trim.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {string} Returns the trimmed string.
 * @example
 *
 * _.trimEnd('  abc  ');
 * // => '  abc'
 *
 * _.trimEnd('-_-abc-_-', '_-');
 * // => '-_-abc'
 */
function trimEnd(string, chars, guard) {
  string = toString(string);
  if (string && (guard || chars === undefined)) {
    return string.slice(0, trimmedEndIndex(string) + 1);
  }
  if (!string || !(chars = baseToString(chars))) {
    return string;
  }
  var strSymbols = stringToArray(string),
      end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;

  return castSlice(strSymbols, 0, end).join('');
}

export default trimEnd;


code:
import baseToString from './_baseToString.js';
import castSlice from './_castSlice.js';
import charsStartIndex from './_charsStartIndex.js';
import stringToArray from './_stringToArray.js';
import toString from './toString.js';

/** Used to match leading whitespace. */
var reTrimStart = /^\s+/;

/**
 * Removes leading whitespace or specified characters from `string`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to trim.
 * @param {string} [chars=whitespace] The characters to trim.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {string} Returns the trimmed string.
 * @example
 *
 * _.trimStart('  abc  ');
 * // => 'abc  '
 *
 * _.trimStart('-_-abc-_-', '_-');
 * // => 'abc-_-'
 */
function trimStart(string, chars, guard) {
  string = toString(string);
  if (string && (guard || chars === undefined)) {
    return string.replace(reTrimStart, '');
  }
  if (!string || !(chars = baseToString(chars))) {
    return string;
  }
  var strSymbols = stringToArray(string),
      start = charsStartIndex(strSymbols, stringToArray(chars));

  return castSlice(strSymbols, start).join('');
}

export default trimStart;


code:
import baseToString from './_baseToString.js';
import castSlice from './_castSlice.js';
import hasUnicode from './_hasUnicode.js';
import isObject from './isObject.js';
import isRegExp from './isRegExp.js';
import stringSize from './_stringSize.js';
import stringToArray from './_stringToArray.js';
import toInteger from './toInteger.js';
import toString from './toString.js';

/** Used as default options for `_.truncate`. */
var DEFAULT_TRUNC_LENGTH = 30,
    DEFAULT_TRUNC_OMISSION = '...';

/** Used to match `RegExp` flags from their coerced string values. */
var reFlags = /\w*$/;

/**
 * Truncates `string` if it's longer than the given maximum string length.
 * The last characters of the truncated string are replaced with the omission
 * string which defaults to "...".
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to truncate.
 * @param {Object} [options={}] The options object.
 * @param {number} [options.length=30] The maximum string length.
 * @param {string} [options.omission='...'] The string to indicate text is omitted.
 * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
 * @returns {string} Returns the truncated string.
 * @example
 *
 * _.truncate('hi-diddly-ho there, neighborino');
 * // => 'hi-diddly-ho there, neighbo...'
 *
 * _.truncate('hi-diddly-ho there, neighborino', {
 *   'length': 24,
 *   'separator': ' '
 * });
 * // => 'hi-diddly-ho there,...'
 *
 * _.truncate('hi-diddly-ho there, neighborino', {
 *   'length': 24,
 *   'separator': /,? +/
 * });
 * // => 'hi-diddly-ho there...'
 *
 * _.truncate('hi-diddly-ho there, neighborino', {
 *   'omission': ' [...]'
 * });
 * // => 'hi-diddly-ho there, neig [...]'
 */
function truncate(string, options) {
  var length = DEFAULT_TRUNC_LENGTH,
      omission = DEFAULT_TRUNC_OMISSION;

  if (isObject(options)) {
    var separator = 'separator' in options ? options.separator : separator;
    length = 'length' in options ? toInteger(options.length) : length;
    omission = 'omission' in options ? baseToString(options.omission) : omission;
  }
  string = toString(string);

  var strLength = string.length;
  if (hasUnicode(string)) {
    var strSymbols = stringToArray(string);
    strLength = strSymbols.length;
  }
  if (length >= strLength) {
    return string;
  }
  var end = length - stringSize(omission);
  if (end < 1) {
    return omission;
  }
  var result = strSymbols
    ? castSlice(strSymbols, 0, end).join('')
    : string.slice(0, end);

  if (separator === undefined) {
    return result + omission;
  }
  if (strSymbols) {
    end += (result.length - end);
  }
  if (isRegExp(separator)) {
    if (string.slice(end).search(separator)) {
      var match,
          substring = result;

      if (!separator.global) {
        separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
      }
      separator.lastIndex = 0;
      while ((match = separator.exec(substring))) {
        var newEnd = match.index;
      }
      result = result.slice(0, newEnd === undefined ? end : newEnd);
    }
  } else if (string.indexOf(baseToString(separator), end) != end) {
    var index = result.lastIndexOf(separator);
    if (index > -1) {
      result = result.slice(0, index);
    }
  }
  return result + omission;
}

export default truncate;


code:
import ary from './ary.js';

/**
 * Creates a function that accepts up to one argument, ignoring any
 * additional arguments.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Function
 * @param {Function} func The function to cap arguments for.
 * @returns {Function} Returns the new capped function.
 * @example
 *
 * _.map(['6', '8', '10'], _.unary(parseInt));
 * // => [6, 8, 10]
 */
function unary(func) {
  return ary(func, 1);
}

export default unary;


code:
import toString from './toString.js';
import unescapeHtmlChar from './_unescapeHtmlChar.js';

/** Used to match HTML entities and HTML characters. */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
    reHasEscapedHtml = RegExp(reEscapedHtml.source);

/**
 * The inverse of `_.escape`; this method converts the HTML entities
 * `&`, `<`, `>`, `"`, and `'` in `string` to
 * their corresponding characters.
 *
 * **Note:** No other HTML entities are unescaped. To unescape additional
 * HTML entities use a third-party library like [_he_](https://mths.be/he).
 *
 * @static
 * @memberOf _
 * @since 0.6.0
 * @category String
 * @param {string} [string=''] The string to unescape.
 * @returns {string} Returns the unescaped string.
 * @example
 *
 * _.unescape('fred, barney, & pebbles');
 * // => 'fred, barney, & pebbles'
 */
function unescape(string) {
  string = toString(string);
  return (string && reHasEscapedHtml.test(string))
    ? string.replace(reEscapedHtml, unescapeHtmlChar)
    : string;
}

export default unescape;


code:
import baseFlatten from './_baseFlatten.js';
import baseRest from './_baseRest.js';
import baseUniq from './_baseUniq.js';
import isArrayLikeObject from './isArrayLikeObject.js';

/**
 * Creates an array of unique values, in order, from all given arrays using
 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * for equality comparisons.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Array
 * @param {...Array} [arrays] The arrays to inspect.
 * @returns {Array} Returns the new array of combined values.
 * @example
 *
 * _.union([2], [1, 2]);
 * // => [2, 1]
 */
var union = baseRest(function(arrays) {
  return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
});

export default union;


code:
import baseFlatten from './_baseFlatten.js';
import baseIteratee from './_baseIteratee.js';
import baseRest from './_baseRest.js';
import baseUniq from './_baseUniq.js';
import isArrayLikeObject from './isArrayLikeObject.js';
import last from './last.js';

/**
 * This method is like `_.union` except that it accepts `iteratee` which is
 * invoked for each element of each `arrays` to generate the criterion by
 * which uniqueness is computed. Result values are chosen from the first
 * array in which the value occurs. The iteratee is invoked with one argument:
 * (value).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {...Array} [arrays] The arrays to inspect.
 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
 * @returns {Array} Returns the new array of combined values.
 * @example
 *
 * _.unionBy([2.1], [1.2, 2.3], Math.floor);
 * // => [2.1, 1.2]
 *
 * // The `_.property` iteratee shorthand.
 * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
 * // => [{ 'x': 1 }, { 'x': 2 }]
 */
var unionBy = baseRest(function(arrays) {
  var iteratee = last(arrays);
  if (isArrayLikeObject(iteratee)) {
    iteratee = undefined;
  }
  return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), baseIteratee(iteratee, 2));
});

export default unionBy;


code:
import baseFlatten from './_baseFlatten.js';
import baseRest from './_baseRest.js';
import baseUniq from './_baseUniq.js';
import isArrayLikeObject from './isArrayLikeObject.js';
import last from './last.js';

/**
 * This method is like `_.union` except that it accepts `comparator` which
 * is invoked to compare elements of `arrays`. Result values are chosen from
 * the first array in which the value occurs. The comparator is invoked
 * with two arguments: (arrVal, othVal).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {...Array} [arrays] The arrays to inspect.
 * @param {Function} [comparator] The comparator invoked per element.
 * @returns {Array} Returns the new array of combined values.
 * @example
 *
 * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
 * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
 *
 * _.unionWith(objects, others, _.isEqual);
 * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
 */
var unionWith = baseRest(function(arrays) {
  var comparator = last(arrays);
  comparator = typeof comparator == 'function' ? comparator : undefined;
  return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
});

export default unionWith;


code:
import baseUniq from './_baseUniq.js';

/**
 * Creates a duplicate-free version of an array, using
 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * for equality comparisons, in which only the first occurrence of each element
 * is kept. The order of result values is determined by the order they occur
 * in the array.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @returns {Array} Returns the new duplicate free array.
 * @example
 *
 * _.uniq([2, 1, 2]);
 * // => [2, 1]
 */
function uniq(array) {
  return (array && array.length) ? baseUniq(array) : [];
}

export default uniq;


code:
import baseIteratee from './_baseIteratee.js';
import baseUniq from './_baseUniq.js';

/**
 * This method is like `_.uniq` except that it accepts `iteratee` which is
 * invoked for each element in `array` to generate the criterion by which
 * uniqueness is computed. The order of result values is determined by the
 * order they occur in the array. The iteratee is invoked with one argument:
 * (value).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
 * @returns {Array} Returns the new duplicate free array.
 * @example
 *
 * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
 * // => [2.1, 1.2]
 *
 * // The `_.property` iteratee shorthand.
 * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
 * // => [{ 'x': 1 }, { 'x': 2 }]
 */
function uniqBy(array, iteratee) {
  return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : [];
}

export default uniqBy;


code:
import baseUniq from './_baseUniq.js';

/**
 * This method is like `_.uniq` except that it accepts `comparator` which
 * is invoked to compare elements of `array`. The order of result values is
 * determined by the order they occur in the array.The comparator is invoked
 * with two arguments: (arrVal, othVal).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Array
 * @param {Array} array The array to inspect.
 * @param {Function} [comparator] The comparator invoked per element.
 * @returns {Array} Returns the new duplicate free array.
 * @example
 *
 * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
 *
 * _.uniqWith(objects, _.isEqual);
 * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
 */
function uniqWith(array, comparator) {
  comparator = typeof comparator == 'function' ? comparator : undefined;
  return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
}

export default uniqWith;


code:
import toString from './toString.js';

/** Used to generate unique IDs. */
var idCounter = 0;

/**
 * Generates a unique ID. If `prefix` is given, the ID is appended to it.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Util
 * @param {string} [prefix=''] The value to prefix the ID with.
 * @returns {string} Returns the unique ID.
 * @example
 *
 * _.uniqueId('contact_');
 * // => 'contact_104'
 *
 * _.uniqueId();
 * // => '105'
 */
function uniqueId(prefix) {
  var id = ++idCounter;
  return toString(prefix) + id;
}

export default uniqueId;


code:
import baseUnset from './_baseUnset.js';

/**
 * Removes the property at `path` of `object`.
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Object
 * @param {Object} object The object to modify.
 * @param {Array|string} path The path of the property to unset.
 * @returns {boolean} Returns `true` if the property is deleted, else `false`.
 * @example
 *
 * var object = { 'a': [{ 'b': { 'c': 7 } }] };
 * _.unset(object, 'a[0].b.c');
 * // => true
 *
 * console.log(object);
 * // => { 'a': [{ 'b': {} }] };
 *
 * _.unset(object, ['a', '0', 'b', 'c']);
 * // => true
 *
 * console.log(object);
 * // => { 'a': [{ 'b': {} }] };
 */
function unset(object, path) {
  return object == null ? true : baseUnset(object, path);
}

export default unset;


code:
import arrayFilter from './_arrayFilter.js';
import arrayMap from './_arrayMap.js';
import baseProperty from './_baseProperty.js';
import baseTimes from './_baseTimes.js';
import isArrayLikeObject from './isArrayLikeObject.js';

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max;

/**
 * This method is like `_.zip` except that it accepts an array of grouped
 * elements and creates an array regrouping the elements to their pre-zip
 * configuration.
 *
 * @static
 * @memberOf _
 * @since 1.2.0
 * @category Array
 * @param {Array} array The array of grouped elements to process.
 * @returns {Array} Returns the new array of regrouped elements.
 * @example
 *
 * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
 * // => [['a', 1, true], ['b', 2, false]]
 *
 * _.unzip(zipped);
 * // => [['a', 'b'], [1, 2], [true, false]]
 */
function unzip(array) {
  if (!(array && array.length)) {
    return [];
  }
  var length = 0;
  array = arrayFilter(array, function(group) {
    if (isArrayLikeObject(group)) {
      length = nativeMax(group.length, length);
      return true;
    }
  });
  return baseTimes(length, function(index) {
    return arrayMap(array, baseProperty(index));
  });
}

export default unzip;


code:
import apply from './_apply.js';
import arrayMap from './_arrayMap.js';
import unzip from './unzip.js';

/**
 * This method is like `_.unzip` except that it accepts `iteratee` to specify
 * how regrouped values should be combined. The iteratee is invoked with the
 * elements of each group: (...group).
 *
 * @static
 * @memberOf _
 * @since 3.8.0
 * @category Array
 * @param {Array} array The array of grouped elements to process.
 * @param {Function} [iteratee=_.identity] The function to combine
 *  regrouped values.
 * @returns {Array} Returns the new array of regrouped elements.
 * @example
 *
 * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
 * // => [[1, 10, 100], [2, 20, 200]]
 *
 * _.unzipWith(zipped, _.add);
 * // => [3, 30, 300]
 */
function unzipWith(array, iteratee) {
  if (!(array && array.length)) {
    return [];
  }
  var result = unzip(array);
  if (iteratee == null) {
    return result;
  }
  return arrayMap(result, function(group) {
    return apply(iteratee, undefined, group);
  });
}

export default unzipWith;


code:
import baseUpdate from './_baseUpdate.js';
import castFunction from './_castFunction.js';

/**
 * This method is like `_.set` except that accepts `updater` to produce the
 * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
 * is invoked with one argument: (value).
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 4.6.0
 * @category Object
 * @param {Object} object The object to modify.
 * @param {Array|string} path The path of the property to set.
 * @param {Function} updater The function to produce the updated value.
 * @returns {Object} Returns `object`.
 * @example
 *
 * var object = { 'a': [{ 'b': { 'c': 3 } }] };
 *
 * _.update(object, 'a[0].b.c', function(n) { return n * n; });
 * console.log(object.a[0].b.c);
 * // => 9
 *
 * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
 * console.log(object.x[0].y.z);
 * // => 0
 */
function update(object, path, updater) {
  return object == null ? object : baseUpdate(object, path, castFunction(updater));
}

export default update;


code:
import baseUpdate from './_baseUpdate.js';
import castFunction from './_castFunction.js';

/**
 * This method is like `_.update` except that it accepts `customizer` which is
 * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
 * path creation is handled by the method instead. The `customizer` is invoked
 * with three arguments: (nsValue, key, nsObject).
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 4.6.0
 * @category Object
 * @param {Object} object The object to modify.
 * @param {Array|string} path The path of the property to set.
 * @param {Function} updater The function to produce the updated value.
 * @param {Function} [customizer] The function to customize assigned values.
 * @returns {Object} Returns `object`.
 * @example
 *
 * var object = {};
 *
 * _.updateWith(object, '[0][1]', _.constant('a'), Object);
 * // => { '0': { '1': 'a' } }
 */
function updateWith(object, path, updater, customizer) {
  customizer = typeof customizer == 'function' ? customizer : undefined;
  return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
}

export default updateWith;


code:
import createCompounder from './_createCompounder.js';

/**
 * Converts `string`, as space separated words, to upper case.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the upper cased string.
 * @example
 *
 * _.upperCase('--foo-bar');
 * // => 'FOO BAR'
 *
 * _.upperCase('fooBar');
 * // => 'FOO BAR'
 *
 * _.upperCase('__foo_bar__');
 * // => 'FOO BAR'
 */
var upperCase = createCompounder(function(result, word, index) {
  return result + (index ? ' ' : '') + word.toUpperCase();
});

export default upperCase;