Glossary Term
Performance.mark()
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The mark() method creates a named PerformanceMark object representing a high resolution timestamp marker in the browser’s performance timeline.
Inputs: name A string representing the name of the mark. Must not be the same name as one of the properties of the deprecated PerformanceTiming interface.
Inputs: startTime DOMHighResTimeStamp to use as the mark time. Defaults to performance.now().
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