how to check if the checkbox is checked in js?
193443
['First, select the checkbox using the selecting DOM methods such as getElementById() or querySelector() .', 'Then, access the checked property of the checkbox element. If its checked property is true , then the checkbox is checked; otherwise, it is not.']
259556
['<title>jQuery Get Selected Radio Button Value</title>', '<script>', '$("input[type=\'button\']"). click(function(){', 'var radioValue = $("input[name=\'gender\']:checked"). val();', 'if(radioValue){', 'alert("Your are a - " + radioValue);', '}', '});']
361922
['jQuery on() Method. This method adds one or more event handlers for the selected elements and child elements. ... ', 'jQuery text() Method. This method set/return the text content of the selected elements. ... ', 'jQuery val() Method. This method return/set the value attribute of the matched elements. ... ', 'JavaScript Array push() Method.']
77245
First, select the checkbox using the selecting DOM methods such as getElementById() or querySelector() . Then, access the checked property of the checkbox element. If its checked property is true , then the checkbox is checked; otherwise, it is not.
336587
You can use angular's function called angular. isUndefined(value) returns boolean. if(!a) { // do something when `a` is not undefined, null, ''. } If the value is either undefined , null or '' then Case 1 otherwise for any other value of value Case 2.
1074125
var valArr = ["1","2","3"]; /* Below Code Matches current object's (i.e. option) value with the array values */ /* Returns -1 if match not found */ $("select"). multiselect("widget"). find(":checkbox"). each(function(){ if(jQuery.
793690
["document. getElementById('submit'). onclick = function() {", "var select = document. getElementById('pets');", 'var selected = [... select. options]', '. filter(option => option. selected)', '. map(option => option. value);', 'alert(selected);']
829711
first of all you need to bring all of the check box s code on the top of your for example state change method & after that for uncheck the check box you can make a variable like state & put the variable value on false & after that you can call the checkbox. setSelected(false); or boolean state = false; CheckBox.
166833
['<script type="text/javascript">', '$("#hidechecked").live("click",function(){', '// loop through each row within the tbody tag and hide fields that are double checked.', 'var counter=-2;', "$('#reconcile_table tbody tr').each(function(){", 'counter=counter+1;', 'if(counter>=0){']
1059644
['JavaScript (and by extension TypeScript) has two bottom types : null and undefined . ... ', 'Fact is you will need to deal with both. ... ', 'Recommend == null to check for both undefined or null . ... ', 'One exception, root level undefined values which we discuss next.', 'Remember how I said you should use == null .']
1387154
Definition and Usage. The <input type="checkbox"> defines a checkbox. The checkbox is shown as a square box that is ticked (checked) when activated. Checkboxes are used to let a user select one or more options of a limited number of choices.
1312516
php if(count($course) > 0): foreach($course as $row):?> <input class="form-check-input" type="checkbox" id="inlineCheckbox1" name="course[]" value="<? = $row ?>" <? php if($row == 'course-name'){ echo 'checked="checked"';}?> >
459483
One way to check for null in JavaScript is to check if a value is loosely equal to null using the double equality == operator: ... So, when programming to check if a variable has any value at all before trying to process it, you can use == null to check for either null or undefined .
785308
['<input type="button">', '<input type="checkbox">', '<input type="color">', '<input type="date">', '<input type="datetime-local">', '<input type="email">', '<input type="file">', '<input type="hidden">']
737755
You can check the corresponding value as being set and non-empty in either the $_POST or $_GET array depending on your form's action. i.e.: With a POST form using a name of "test" (i.e.: <input type="checkbox" name="test"> , you'd use: if(isset($_POST['test']) { // The checkbox was enabled... }
916765
['<script type="text/javascript">', 'function GetSelected() {', '//Reference the GridView.', 'var grid = document. getElementById("<%=GridView1. ClientID%>");', '//Reference the CheckBoxes in GridView.', 'var checkBoxes = grid. getElementsByTagName("INPUT");', 'var message = "Id Name Country\\n";', '//Loop through the CheckBoxes.']
1041403
['To get value of a checked checkbox :', "To get value of multiple checked checkboxes, name attribute in HTML input type=”checkbox” tag must be initialize with an array, to do this write [ ] at the end of it's name attribute :"]