Performance: clearMeasures() method
The clearMeasures()
method removes all or specific PerformanceMeasure
objects from the browser's performance timeline.
Syntax
js
clearMeasures()
clearMeasures(name)
Parameters
name
Optional-
A string representing the
name
of thePerformanceMeasure
object. If this argument is omitted, all entries with anentryType
of "measure
" will be removed.
Return value
None (undefined
).
Examples
Removing measures
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
Specifications
Specification |
---|
User Timing # dom-performance-clearmeasures |
Browser compatibility
BCD tables only load in the browser