The clearMarks()
method removes all or specific PerformanceMark
objects from the browser's performance timeline.
The clearMarks()
method removes all or specific PerformanceMark
objects from the browser's performance timeline.
name
Optional
A string representing the name
of the PerformanceMark
object. If this argument is omitted, all entries with an entryType
of "mark
" will be removed.
None (undefined
).
To clean up all performance marks, or just specific entries, use the clearMarks()
method like this:
js
// Create a bunch of marks performance.mark("login-started"); performance.mark("login-started"); performance.mark("login-finished"); performance.mark("form-sent"); performance.mark("video-loaded"); performance.mark("video-loaded"); performance.getEntriesByType("mark").length; // 6 // Delete just the "login-started" mark entries performance.clearMarks("login-started"); performance.getEntriesByType("mark").length; // 4 // Delete all of the mark entries performance.clearMarks(); performance.getEntriesByType("mark").length; // 0
Specification |
---|
User Timing # dom-performance-clearmarks |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
clearMarks |
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/clearMarks