how to do a jquery ajax call?
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["Example: jQuery Ajax Request. $.ajax('/jquery/getdata', // request url { success: function (data, status, xhr) {// success callback function $('p').append(data); } }); <p></p> ... ", 'Example: Get JSON Data. ... ', 'Example: ajax() Method. ... ', 'Example: Send POST Request.']
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['Step1. ... ', 'Get all the data from the SharePoint list on page load. ... ', 'Integrate the jQuery Datatable with AngularJS as below.']
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$var = jQuery("#dropdownid option:selected"). val(); alert ($var); Or to get the text of the option, use text() : $var = jQuery("#dropdownid option:selected").
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How to get the selected value and currently selected text of a dropdown box using jQuery? JavaScript Code: $(document). ready(function(){ $('#button1').
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Display loading image when AJAX call is in progress, Show a "loading" indicator image while an AJAX request is going on: $(document​). ajaxStart(function(){ $("#wait"). css("display", "block"); }); $(document).
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['$(function() {', "var prevSelect = '';", "var thisSelect = $('#myselect').val();", "$('#myselect').change(function() {", 'prevSelect = thisSelect;', 'thisSelect = $(this).val();', "alert(prevSelect + ' - ' + thisSelect);", '});']
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['<select id="dropdown"> <option value="1">Option 1</option> <option value="2">Option 2</option> <option value="3">Option 3</option> <option value="4">Option 4</option> </select>', '$(function() { $(#dropdown).']
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["Row index 0 data: var table = $('#example').DataTable(); var data = table.row( 0 ).data(); ... ", "Select a single row by id: var table = $('#example').DataTable(); var row = table.row('#row-42'); ... ", 'Select rows by class name: ... ', 'Get the data for a row that was clicked upon: ... ', 'Get data from rows in a jQuery instance:']
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['Passing by Typed Arguments.', 'Request Object.', 'Form Collections Object.', 'Data Binding.']
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AJAX = Asynchronous JavaScript And XML. AJAX is not a programming language. AJAX just uses a combination of: ... JavaScript and HTML DOM (to display or use the data)
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AJAX is a set of web development techniques used by client-side frameworks and libraries to make asynchronous HTTP calls to the server. AJAX stands for Asynchronous JavaScript and XML. AJAX used to be a common name in the web development circles and many of the popular JavaScript widgets were built using AJAX.
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jQuery provides several methods for AJAX functionality. With the jQuery AJAX methods, you can request text, HTML, XML, or JSON from a remote server using both HTTP Get and HTTP Post - And you can load the external data directly into the selected HTML elements of your web page!
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['Create a form to get Data.', 'Post the data using a Ajax request to the Controller.', 'In the Controller receive the data as a object and process it.', 'Return a new object from the Controller.', 'In the Ajax code, receive the new object and display it on the UI.']
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['<title>jQuery Get the Value of an Input Text Box</title>', '<script>', '// Get value on button click and show alert.', '$("#myBtn"). click(function(){', 'var str = $("#myInput"). val();', 'alert(str);', '});', '});']
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4 Answers. You can do so using simple javascript , add On change event listener to all your select with a function to handle the logic with the element as a value. You can use change event to get the value. You need to use event delegation here.
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['<title>jQuery Get Selected Option Value</title>', '<script>', '$("select.country"). change(function(){', 'var selectedCountry = $(this). children("option:selected"). val();', 'alert("You have selected the country - " + selectedCountry);', '});', '});', '</script>']
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['$. ajax() method allows you to send asynchronous http requests to submit or retrieve data from the server without reloading the whole page.', '$. ajax() can be used to send http GET, POST, PUT, DELETE etc. ... ', 'Syntax: $. ... ', 'Use option parameter to customize ajax request as per your need.']