performanceintermediate

performance — timeOrigin is less than Date.now() + 1

📖 Usage Example

performance.timeOrigin + performance.now()
// → approx Date.now()

Adding timeOrigin and now() approximates the current Unix timestamp in milliseconds.

performance.timeOrigin — before now

performance.timeOrigin represents the past (the moment the page/process started), so it must be less than the current time.

Challenge: Verify that performance.timeOrigin < Date.now() + 1.

💡 Hints (1)

• We add 1ms to account for the tiny time elapsed between evaluating timeOrigin and Date.now()

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