在此页

• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

History.length read-only property returns an integer representing the number of elements in the session history, including the currently loaded page. For example, for a page loaded in a new tab this property returns 1 .

句法

const length = history.length
					

规范

规范	状态	注释
HTML 实时标准 The definition of 'History.length' in that specification.	实时标准	无变化自 HTML5 .
HTML5 The definition of 'History.length' in that specification.	推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
length	Chrome Yes	Edge 12	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

完整支持

另请参阅

• 历史 interface it belongs to.

元数据

• 最后修改： Feb 24, 2020

相关话题

1. 历史 API
2. 历史
3. 特性

   1. length
   2. scrollRestoration
   3. state
4. 方法

   1. back()
   2. forward()
   3. go()
   4. pushState()
   5. replaceState()