Baseline Widely available
Note: This feature is available in Web Workers.
The takeRecords() method of the PerformanceObserver interface returns the current list of PerformanceEntry objects stored in the performance observer, emptying it out.
None.
Return valueA list of PerformanceEntry objects.
The following example stores the current list of performance entries into records and empties the performance observer.
const observer = new PerformanceObserver((list, obj) => {
list.getEntries().forEach((entry) => {
// Process "mark" and "measure" events
});
});
observer.observe({ entryTypes: ["mark", "measure"] });
const records = observer.takeRecords();
console.log(records[0].name);
console.log(records[0].startTime);
console.log(records[0].duration);
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