Summary
PerformanceNavigation接口呈现了如何导航到当前文档的信息。
这个类型的对象可以被只读属性Performance.navigation调用。
Properties
PerformanceNavigation 接口不继承任何属性。
PerformanceNavigation.type只读- 一个无符号短整型，表示是如何导航到这个页面的。可能的值如下:
TYPE_NAVIGATE(0)- 当前页面是通过点击链接，书签和表单提交，或者脚本操作，或者在url中直接输入地址，type值为0
TYPE_RELOAD(1)- 点击刷新页面按钮或者通过
Location.reload()方法显示的页面，type值为1 - The page was accessed by clicking the Reload button or via the
Location.reload()method. TYPE_BACK_FORWARD(2)- 页面通过历史记录和前进后退访问时。type值为2
TYPE_RESERVED(255)- 任何其他方式，type值为255
PerformanceNavigation.redirectCount只读- 无符号短整型，表示在到达这个页面之前重定向了多少次。
Methods
Performance 接口没有继承任何方法
PerformanceNavigation.toJSON()- 把
PerformanceNavigation转换成JSON对象
Specifications
| Specification | Status | Comment |
|---|---|---|
| Navigation Timing PerformanceNavigation |
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.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PerformanceNavigation | Chrome Full support Yes | Edge Full support Yes | Firefox Full support 7 | IE Full support 9 | Opera No support No | Safari No support No | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 7 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android Full support Yes |
redirectCount | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 7 | IE Full support 9 | Opera No support No | Safari No support No | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 7 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android Full support Yes |
toJSON | Chrome Full support 56 | Edge Full support 12 | Firefox
Full support
25
| IE Full support 9 | Opera No support No | Safari No support No | WebView Android Full support 56 | Chrome Android Full support 56 | Firefox Android
Full support
25
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android Full support Yes |
type | Chrome Full support Yes | Edge Full support 12 | Firefox
Full support
7
| IE Full support 9 | Opera No support No | Safari No support No | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android
Full support
7
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.
- See implementation notes.
- See implementation notes.
See also
- The
Performancethat allows access to an object of this type. PerformanceNavigationTiming(part of Navigation Timing Level 2)