Input Radio Object
The Input Radio object represents an HTML <input> element with type="radio".
Access an Input Radio Object
You can access an <input> element with type="radio" by using getElementById():
Tip: You can also access <input type="radio"> by searching through the elements collection of a form.
Create an Input Radio Object
You can create an <input> element with type="radio" by using the document.createElement() method:
Input Radio Object Properties
= Property added in HTML5.
| Property | Description |
|---|---|
| autofocus | Sets or returns whether a radio button should automatically get focus when the page loads |
| checked | Sets or returns the checked state of a radio button |
| defaultChecked | Returns the default value of the checked attribute |
| defaultValue | Sets or returns the default value of a radio button |
| disabled | Sets or returns whether the radio button is disabled, or not |
| form | Returns a reference to the form that contains the radio button |
| name | Sets or returns the value of the name attribute of a radio button |
| required | Sets or returns whether the radio button must be checked before submitting a form |
| type | Returns which type of form element the radio button is |
| value | Sets or returns the value of the value attribute of the radio button |
Standard Properties and Events
The Input Radio object also supports the standard properties and events.
Related Pages
HTML tutorial: HTML Forms
HTML reference: HTML <input> tag
HTML reference: HTML <input> type attribute