PerformanceNavigation - Web API 接口参考 编辑

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

BCD tables only load in the browser

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.

See also

• The Performance that allows access to an object of this type.
• PerformanceNavigationTiming (part of Navigation Timing Level 2)