HTML DOM Input Checkbox checked Property

HTML Web Development Front End Technology

The HTML DOM input checkbox checked property returns and alter the value of checked attribute of a checkbox in HTML.

syntax

Following is the syntax −

1. Returning checked

object.checked

2. Altering checked

object.checked = true|false

Example

Let us see an example of HTML DOM Input Checkbox checked property −

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>HTML DOM checked property</title>
<style>
   body{
      text-align:center;
   }
   p{
      font-size:1.5rem;
      color:#ff8741;
   }
   input{
      width:30px;
      height:30px;
   }
   button{
      background-color:#db133a;
      color:#fff;
      padding:8px;
      border:none;
      width:120px;
      margin:0.5rem;
      border-radius:50px;
      outline:none;
   }
</style>
</head>
<body>
<h1>checked Property Example</h1>
<p>Are you happy?</p>
<input type="checkbox">
<br>
<button onclick="yes()">Yes</button>
<button onclick="no()">No</button>
<script>
   function yes() {
      document.querySelector("input").checked = true;
   }
   function no() {
      document.querySelector("input").checked = false;
   }
</script>
</body>
</html>