Input Radio defaultChecked Property
Example
Check if a radio button is checked by default:
var x = document.getElementById("myRadio").checked;
The result of x will be:
true
Try it Yourself »
Definition and Usage
The defaultChecked property returns the default value of the checked attribute.
This property returns true if the radio button is checked by default, otherwise it returns false.
Browser Support
The defaultChecked property is supported in all major browsers.
Syntax
radioObject.defaultChecked
Return Value
| Type | Description |
|---|---|
| Boolean | Returns true if the radio button is checked by default, otherwise it returns false. |
Input Radio Object
