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HTML DOM Radio objects

Radio Object

Radio object represents an HTML form radio button.

In the HTML form <input type = "radio"> Every once, a Radio object is created.

Radio buttons is a set of mutually exclusive options buttons. When a button is selected, previously selected button becomes unselected.

When the radio button is selected or not selected, the button will trigger the onclick event handler.

You can iterate through the form elements [] array to access Radio objects, or by using document.getElementById ().


Radio Object Properties

W3C: W3C standards.

属性 描述 W3C
checked 设置或返回单选按钮的状态。 Yes
defaultChecked 返回单选按钮的默认状态。 Yes
disabled 设置或返回是否禁用单选按钮。 Yes
form 返回一个对包含此单选按钮的表单的引用。 Yes
name 设置或返回单选按钮的名称。 Yes
type 返回单选按钮的表单类型。 Yes
value 设置或返回单选按钮的 value 属性的值。 Yes

Standard properties and events

Radio objects also supports the standard attributes and events .