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The Web Performance API allows web pages access to certain functions for measuring the performance of web pages and web applications, including the Navigation Timing API and high-resolution time data.
Methods
performance.mark()- Maps a
DOMHighResTimeStampto a specified name representing the amount of milliseconds elapsed since a reference instant.
performance.now()- Returns a
DOMHighResTimeStamprepresenting the amount of milliseconds elapsed since a reference instant.
Properties
performance.timing- Is a
PerformanceTimingobject containing latency-related performance information. performance.navigation- Is a
PerformanceNavigationobject representing the type of navigation that occurs in the given browsing context, like the amount of redirections needed to fetch the resource. - performance.memory
- A non-standard extension added in Chrome.
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