The clearMarks() method removes the named mark from the browser's performance entry buffer. If the method is called with no arguments, all performance entries with an entry type of "mark" will be removed from the performance entry buffer.
performance.clearMarks(); performance.clearMarks(name);
DOMString representing the name of the timestamp. If this argument is omitted, all performance entries with an entry type of "mark" will be removed.The following example shows both uses of the clearMarks() method.
function clear_mark(name) {
if (performance.clearMarks === undefined) {
console.log("performance.clearMarks Not supported");
return;
}
// Remove all "mark" performance entry types with the specified name
performance.clearMarks(name);
}
function clear_all_marks() {
if (performance.clearMarks === undefined) {
console.log("performance.clearMarks Not supported");
return;
}
// Remove all "mark" type performance entries from the performance buffer
performance.clearMarks();
}
| Specification | Status | Comment |
|---|---|---|
| User Timing Level 2 The definition of 'clearMarks()' in that specification. | Working Draft | Clarifies clearMarks(). |
| User Timing The definition of 'clearMarks()' in that specification. | Recommendation | Basic definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 43 | Yes | 41 | 10 | 33 | 11 |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 46 | 46 | Yes | 42 | 33 | 11 | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Performance/clearMarks