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.
js
clearMeasures() clearMeasures(name)
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