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The clearResourceTimings()
method removes all performance entries
with an entryType
of "resource
" from the browser's performance data buffer and sets the size of the performance data buffer to zero. To set the size of the browser's performance data buffer, use the Performance.setResourceTimingBufferSize()
method.
Syntax
performance.clearResourceTimings();
Arguments
- void
Return value
- none
- This method has no return value.
Example
function load_resource() { var image = new Image(); image.src = "https://developer.mozilla.org/static/img/opengraph-logo.png"; } function clear_performance_timings() { if (performance === undefined) { log("Browser does not support Web Performance"); return; } // Create a resource timing performance entry by loading an image load_resource(); var supported = typeof performance.clearResourceTimings == "function"; if (supported) { console.log("Run: performance.clearResourceTimings()"); performance.clearResourceTimings(); } else { console.log("performance.clearResourceTimings() NOT supported"); return; } // getEntries should now return zero var p = performance.getEntriesByType("resource"); if (p.length == 0) console.log("... Performance data buffer cleared"); else console.log("... Performance data buffer NOT cleared!"); }
Specifications
Specification | Status | Comment |
---|---|---|
Resource Timing The definition of 'clearResourceTimings()' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support. | (Yes) | (Yes) | (Yes) | (Yes) | No support |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | No support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | No support | (Yes) |