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HTML DOM Input Radio Object


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():

var x = document.getElementById("myRadio"); Try it

Tip: You can also access an Input Radio object 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:

var x = document.createElement("INPUT");
x.setAttribute("type", "radio"); Try it

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

Input Radio Object Methods

Method Description
blur() Removes focus from a radio button
focus() Gives focus to a 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



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