Input Radio required Property
Example
Find out if a radio button must be checked before submitting a form:
var x = document.getElementById("myRadio").required;
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Description
The required property sets or returns whether a radio button must be checked before submitting a form.
This property reflects the HTML required attribute.
Browser Support
Property | |||||
---|---|---|---|---|---|
value | Yes | 10.0 | Yes | Yes | Yes |
Syntax
Return the required property:
radioObject.required
Set the required property:
radioObject.required = true|false
Property Values
Value | Description |
---|---|
true|false |
Specifies whether a radio button should be checked before submitting a form
|
Technical Details
Return Value: | A Boolean, returns true if the radio buton must be checked before submitting a form, otherwise it returns false |
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More Examples
Example
Set a radio button to be a required part of form submission:
document.getElementById("myRadio").required = true;
Try it Yourself »
Related Pages
HTML reference: HTML <input> required attribute
❮ Input Radio Object