翻译正在进行中。
History.length是一个只读属性，返回当前session中的history个数，包含当前页面在内。举个例子，对于新开一个tab加载的页面当前属性返回值1。
Syntax
length = history.length;
Examples
var result = window.history.length; // 返回当前session中的history个数
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard History.length |
Living Standard | No change from HTML5. |
| HTML5 History.length |
Recommendation | Initial definition. |
Browser compatibility
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.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | Yes | ? | Yes | ? | ? | ? |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | ? | Yes | ? | ? | ? |
See also
- The
Historyinterface it belongs to.