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。
语法
length = history.length;
例子
var result = window.history.length; // 返回当前session中的history个数说明
| 说明 | 状态 | 注释 |
|---|---|---|
| HTML Living Standard History.length |
Living Standard | No change from HTML5. |
| HTML5 History.length |
Recommendation | Initial definition. |
浏览器兼容性
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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.
参考
- The
Historyinterface it belongs to.