The clearMeasures()
method removes all or specific PerformanceMeasure
objects from the browser's performance timeline.
The clearMeasures()
method removes all or specific PerformanceMeasure
objects from the browser's performance timeline.
name
Optional
A string representing the name
of the PerformanceMeasure
object. If this argument is omitted, all entries with an entryType
of "measure
" will be removed.
None (undefined
).
To clean up all performance measure, or just specific entries, use the clearMeasures()
method like this:
js
// Create a bunch of measures performance.measure("from navigation"); performance.mark("a"); performance.measure("from mark a", "a"); performance.measure("from navigation"); performance.measure("from mark a", "a"); performance.mark("b"); performance.measure("between a and b", "a", "b"); performance.getEntriesByType("measure").length; // 5 // Delete just the "from navigation" measure entries performance.clearMeasures("from navigation"); performance.getEntriesByType("measure").length; // 3 // Delete all of the measure entries performance.clearMeasures(); performance.getEntriesByType("measure").length; // 0
Specification |
---|
User Timing # dom-performance-clearmeasures |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
clearMeasures |
2925–29 | 12 | 38 | 10 | 33 | 11 | 4.4 | 2925–29 | 42 | 33 | 11 | 2.01.5–2.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/Performance/clearMeasures