marky - High-resolution JavaScript timer based on performance.mark/measure (461 bytes min+gz)

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JavaScript timer based on performance.mark() and performance.measure(), providing high-resolution timings as well as nice Dev Tools visualizations. For browsers that don't support performance.mark(), it falls back to performance.now() or Date.now(). In Node, it uses process.hrtime().

https://github.com/nolanlawson/marky#readme

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