Checking a Checkbox with JavaScript

Javascript Web Development Front End Technology Object Oriented Programming

Let’s say the following are ourrinput type checkbox −

<lable>John</lable>
<input id="checkedValue1" type="checkbox">
<lable>David</lable>
<input id="checkedValue2" type="checkbox">

We want to check any of the checkbox. Use the checked property to check the checkbox.

Example

Following is the code −

Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Document</title>
</head>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<body>
   <lable>John</lable>
   <input id="checkedValue1" type="checkbox">
   <lable>David</lable>
   <input id="checkedValue2" type="checkbox">
</body>
<script>
   document.querySelector('#checkedValue2').checked = true
</script>
</html>

To run the above program, save the file name anyName.html(index.html). Right click on the file and select the option “Open with live server” in VS Code editor −