Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Immer vs Clone Deep

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innerHTML vs replaceChildren + insertAdjacentHTML

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js array copy speed comparison with spread operator

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slice VS splice VS shift: who is the fastest to keep constant size [VARIANT]

100k list splice and shift win, they mutate list slice loose, it creates a copy of list 7.5x slower

String iteration optimized

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Array splice vs delete

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luxon vs datefns adding

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Intl.Collator.compare vs localeCompare (fixed)

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flatMap vs reduce vs loop filtering performance

https://stackoverflow.com/a/77247681

flatMap vs reduce filtering performance

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flatMap vs reduce spread vs reduce push

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getOwnPropertyNames() vs Object.keys() vs for ... in

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Intl.Collator.compare vs localeCompare

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Test: React useCallback vs notUseCallback

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flatMap vs reduce vs filter.map v2

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uuid lib v4 vs math random vs crypto getRandomValues vs crypto randomUUID

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set.has vs. array.includes for 1000 elements

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Lodash cloneDeep vs JSON parse

Comparison of deep cloning 10,000 objects in an array with Lodash cloneDeep vs JSON parse and stringify.

filter + pop VS reverse + find feq gegr

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++i vs i++

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Deep merge lodash vs ramda vs Immutable with multiple objects

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Deep merge lodash vs ramda vs deepmerge vs Immutable

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Getter / Setter vs Proxy vs Class getter aleynikovsa

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switch case vs object (string as key)

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test simple parse string to number

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