Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

spread call vs apply

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Copy object using reduce Object.entries vs Object.keys + extra check for loop

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for loop vs. .map with size

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cached Number.toLocaleString vs Intl.NumberFormat

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object emptyness big object

test object emptyness with a big object

getBoundingClientRect vs getAttribute

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Class versus factory

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querySelectorAll data attribute vs class name vs combined - another

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querySelectorAll data attribute vs class name vs combined [2]

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crypto.randomUUID() vs crypto.getRandomValues()

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PIMEc TEST

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JS equality vs strict equality

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python len vs cache

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flatMap vs reduce with spread vs reduce with concat

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Array checking: isArray vs val.with

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Array isArray vs typeof (negative case)

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JS Push vs Unshift

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Array .push() vs .unshift()

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Benchmark GTM

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Spread vs Object.assign mutate

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Regex vs Native

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validate user agent

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forEach vs filter nvmnghia 1812

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Concat vs spread [...Arr1, ...Arr2] for large arrays

Comparing the various ways to append to a large array

Array vs TypedArray write performance ttttttt

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