Input Email autofocus 属性

HTML DOM Input Email Obheto

定义和用法

autofocus 属性设置或返回电子邮件字段是否应在页面加载时自动获得焦点。

此属性反映 HTML autofocus 属性。

另请参阅：

HTML 参考手册：HTML <input> autofocus Atribute

实例

确定电子邮件字段是否在页面加载时自动获得焦点：

var x = document.getElementById("myEmail").autofocus;

亲自试一试

语法

返回 autofocus 属性：

emailObject.autofocus

设置 autofocus 属性：

emailObject.autofocus = "true|false"

属性值

值 描述
true|false

规定在页面加载时电子邮件字段是否应获得焦点。

  • true - 电子邮件字段获得焦点
  • false - 默认。电子邮件字段未获得焦点

技术细节

返回值： 布尔值，如果页面加载时电子邮件字段自动获得焦点，则返回 true；否则返回 false。

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Sumusuporta Sumusuporta Sumusuporta Sumusuporta Sumusuporta

Lahat ng pangunahing browser ay sumusuporta autofocus Atribute.

Komentaryo:Ang Internet Explorer 9 at mas maagang bersyon o ang Opera 12 at mas maagang bersyon ay hindi sumusuporta autofocus Atribute.

Komentaryo:Ang Internet Explorer 9 at mas maagang bersyon o ang Safari ay hindi sumusuporta sa <input type="email"> elemento.

HTML DOM Input Email Obheto