Input Checkbox required Property
Example
Find out if a checkbox must be checked before submitting a form:
var x = document.getElementById("myCheck").required;
The result of x will be:
true
Try it yourself »
Definition and Usage
The required property sets or returns whether a checkbox must be checked before submitting a form.
This property reflects the HTML required attribute.
Browser Support
The required property is supported in all major browsers, except Safari.
Note: The required property is not supported in Internet Explorer 9 and earlier versions.
Syntax
Return the required property:
checkboxObject.required
Set the required property:
checkboxObject.required=true|false
Property Values
| Value | Description |
|---|---|
| true|false |
Specifies whether a checkbox should be checked before submitting a form
|
Technical Details
| Return Value: | A Boolean, returns true if the checkbox must be checked before submitting a form, otherwise it returns false |
|---|
More Examples
Example
Set a checkbox to be a required part of form submission:
document.getElementById("myCheck").required = true;
Try it yourself »
Related Pages
HTML reference: HTML <input> required attribute
Input Checkbox Object
