NavigationHistoryEntry:index 属性
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
NavigationHistoryEntry
接口的 index
只读属性返回历史条目在历史条目列表(即 Navigation.entries()
返回的列表)中的索引,如果条目未出现在列表中或者当前文档未处于完全活跃状态,则返回 -1
。
值
表示历史条目列表中条目的 index
的数字,如果此项未出现在列表中,则为 -1
。
示例
js
const current = navigation.currentEntry;
console.log(current.index);
规范
Specification |
---|
HTML # dom-navigationhistoryentry-index-dev |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
index |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- See implementation notes.
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.
参见
- 现代客户端路由:导航 API
- 导航 API 说明
- Domenic Denicola 的导航 API 在线演示