SHARE THIS PAGE

JS & DOM Reference

Overview

JavaScript Objects

JS Array JS Boolean JS Date JS Math JS Number JS String JS RegExp JS Global

Browser Objects

Window Navigator Screen History Location

Core DOM Objects

DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attr

HTML DOM Objects

DOM Document DOM Events DOM Elements
DOM Anchor DOM Area DOM Base DOM Body DOM Button DOM Form DOM Frame/IFrame DOM Frameset DOM Image DOM Input Button DOM Input Checkbox DOM Input File DOM Input Hidden DOM Input Password DOM Input Radio DOM Input Reset DOM Input Submit DOM Input Text DOM Link DOM Meta DOM Object DOM Option DOM Select DOM Style DOM Table DOM td / th DOM tr DOM Textarea

Checkbox checked Property

Checkbox Object

Definition and Usage

The checked property sets or returns the checked state of a checkbox.

Syntax

Set the checked property:

checkboxObject.checked=true|false

Return the checked property:

checkboxObject.checked

Browser Support

The checked property is supported in all major browsers.

Example

Set the checked state of a checkbox:

<html>
<head>
<script>
function check()
  {
  document.getElementById("check1").checked=true
  }
function uncheck()
  {
  document.getElementById("check1").checked=false
  }
</script>
</head>
<body>

<form>
<input type="checkbox" id="check1">Do you like summer?
</form>

<button onclick="check()">Check Checkbox</button>
<button onclick="uncheck()">Uncheck Checkbox</button>

</body>
</html>

Try it yourself »