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The validation of the checkbox in javascript can be done using the checked property of the checkbox element. This property returns true when the checkbox is selected. The addEventListener() method can be used to apply the change event to the checkbox to validate whenever the user interacts with the checkbox.

The is() method checks for a :checked CSS pseudo-class, which would be added to a checkbox if it's checked. It returns true if the checkbox is checked. The getElementById element selector is used to find an element by id . The boolean checked property exists on checkbox inputs.

Different JavaScript codes to get marked checkboxes value <script> document.getElementById('btn').onclick = function() { var markedCheckbox = document.getElementsByName('pl'); for (var checkbox of markedCheckbox) { if (checkbox.checked) document.body.append(checkbox.value + ' '); } }

JavaScript function to get selected (checked) CheckBox Row values of Html Table <script type="text/javascript"> var grid = document. getElementById("Table1"); var checkBoxes = grid. getElementsByTagName("INPUT"); var message = "Id Name Country\n"; for (var i = 0; i < checkBoxes.length; i++) {

Different JavaScript codes to get marked checkboxes value <script> document.getElementById('btn').onclick = function() { var markedCheckbox = document.getElementsByName('pl'); for (var checkbox of markedCheckbox) { if (checkbox.checked) document.body.append(checkbox.value + ' '); } }

To get the checkbox value in JavaScript, you can use the ?document. querySelectorAll()? method to select the specified checkboxes or the ?document. getElementById? method to get the ?id? against each of the selected checkboxes and display its corresponding value.

4 Replies $(function () { $('#someid_1').click(function () { var id = $(this).attr('id'); alert(id); }); });