概述

返回当前文档中的 <head> 元素。如果有多个 <head> 元素,则返回第一个。

语法

var objRef = document.head;

示例

// HTML部分源码为: <head id="my-document-head">
var aHead = document.head;

alert(aHead.id); // "my-document-head";

alert( document.head === document.querySelector("head") ); // true

附注

document.head 是个只读属性,为该属性赋值只会静默失败,如果在严格模式中,则会抛出TypeError异常。

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 4.0 4.0 (2) 9.0 11.0 5.0
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) 4.0 (2) 9.0 (Yes) (Yes)

规范

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 此页面的贡献者: teoli, AlexChao, ziyunfei
 最后编辑者: AlexChao,