🏠 New in Low Baseline Support: Performance
September 16, 2015
caniuse · mdn · [spec]([‘https://w3c.github.io/hr-time/’, ‘https://w3c.github.io/performance-timeline/’, ‘https://w3c.github.io/resource-timing/’, ‘https://w3c.github.io/user-timing/#extensions-performance-interface’])
The performance global object and the Performance API provide access to performance-related information for the current execution context.
Source features
api.Performance[mdn]api.performance[mdn]api.Performance.now[mdn]api.PerformanceMeasure[mdn]api.Performance.getEntries[mdn]api.Performance.getEntriesByName[mdn]api.Performance.getEntriesByType[mdn]api.PerformanceMark[mdn]api.Performance.mark[mdn]api.Performance.measure[mdn]api.Performance.clearMarks[mdn]api.Performance.clearMeasures[mdn]api.performance.worker_support[mdn]api.Performance.clearResourceTimings[mdn]api.Performance.setResourceTimingBufferSize[mdn]api.PerformanceEntry[mdn]api.PerformanceEntry.duration[mdn]api.PerformanceEntry.entryType[mdn]api.PerformanceEntry.name[mdn]api.PerformanceEntry.startTime[mdn]api.PerformanceEntry.toJSON[mdn]api.PerformanceEntry.worker_support[mdn]api.Performance.resourcetimingbufferfull_event[mdn]api.PerformanceObserver[mdn]api.PerformanceObserver.PerformanceObserver[mdn]api.PerformanceObserver.disconnect[mdn]api.PerformanceObserver.observe[mdn]api.PerformanceObserverEntryList[mdn]api.PerformanceObserverEntryList.getEntries[mdn]api.PerformanceObserverEntryList.getEntriesByName[mdn]api.PerformanceObserverEntryList.getEntriesByType[mdn]http.headers.Timing-Allow-Origin[mdn]api.PerformanceObserver.worker_support[mdn]api.PerformanceObserver.supportedEntryTypes_static[mdn]api.Performance.toJSON[mdn]api.Performance.timeOrigin[mdn]api.PerformanceObserver.takeRecords[mdn]api.PerformanceMark.PerformanceMark[mdn]api.Performance.mark.markOptions_parameter[mdn]api.Performance.mark.returns_performancemark[mdn]api.PerformanceMark.detail[mdn]api.Performance.measure.measureOptions_parameter[mdn]api.Performance.measure.returns_performancemeasure[mdn]api.PerformanceMeasure.detail[mdn]api.PerformanceObserver.PerformanceObserver.droppedEntriesCount[mdn]