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Performance.timing 只读属性返回一个 PerformanceTiming 对象,这个对象包括了页面相关的性能信息。


timingInfo = performance.timing;


规范名 状态 描述
Navigation Timing
Recommendation Initial definition.


We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

?特性 Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 6.0 7.0 (7.0) 9.0 15.0 8
特性 Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support 6.0 7.0 (7.0) 1.0 (7.0) 9.0 15.0 9



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