performance.clearMeasures()
The clearMeasures()
method removes the named
measure from the browser's performance entry buffer. If the method is called with
no arguments, all performance entries
with an
entry type
of "measure
" will be
removed from the performance entry buffer.
Note: This feature is available in Web Workers
Syntax
performance.clearMeasures();
performance.clearMeasures(name);
Arguments
- name Optional
-
A
DOMString
representing the name of the timestamp. If this argument is omitted, allperformance entries
with anentry type
of "measure
" will be removed.
Return value
- void
- :
Example
The following example shows both uses of the clearMeasures()
method.
// Create a small helper to show how many PerformanceMeasure entries there are.
function logMeasureCount() {
console.log(
"Found this many entries: " + performance.getEntriesByType("measure").length
);
}
// 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");
logMeasureCount() // "Found this many entries: 5"
// Delete just the "from navigation" PerformanceMeasure entries.
performance.clearMeasures("from navigation");
logMeasureCount() // "Found this many entries: 3"
// Delete all of the PerformanceMeasure entries.
performance.clearMeasures();
logMeasureCount() // "Found this many entries: 0"
Specifications
Specification |
---|
User Timing # dom-performance-clearmeasures |
Browser compatibility
BCD tables only load in the browser