JS Built-ins
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performancebeginner

performance — timeOrigin is finite

📖 Usage Example
performance.timeOrigin > 0  // → true

timeOrigin is always a positive number representing a real point in time.

performance.timeOrigin — finite number

performance.timeOrigin is always a finite number — never Infinity, -Infinity, or NaN.

Challenge: Verify that Number.isFinite(performance.timeOrigin) is true.

💡 Hints (1)
  • • Number.isFinite returns false for Infinity, -Infinity, and NaN