JS Built-ins
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performancebeginner

performance — timeOrigin is a number

📖 Usage Example
performance.timeOrigin  // → e.g. 1712345678000.5

performance.timeOrigin is the high-resolution timestamp of when the page started loading.

performance.timeOrigin

performance.timeOrigin is a Unix timestamp (in milliseconds) representing when the performance clock started.

Challenge: Verify that typeof performance.timeOrigin is 'number'.

💡 Hints (1)
  • • timeOrigin is a Unix epoch timestamp in milliseconds