Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

dayjs locale load 2

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dayjs locale load

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for-in vs object.keys true

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find vs findIndex (Array prototype methods) object

Measuring which is faster

map vs for...of vs for

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filter-map vs reduce PSOW

modified version of `map-filter vs reduce` that switches the order of operations

flatMap vs reduce array generation

flatMap vs reduce

split vs matchsplit

split vs matchsplit

yongyong

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replace test 122311231 2

aaaaaa

instanceof vs tagname

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32bit copyWithin: is it fast?

Is copyWithin fast?

test split vs substring

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starts with

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obj[name] lookup perf

Object lookup performance

Object lookup perf undefined vs. typeof vs. in vs. hasOwnProperty

Object lookup performance

my vs fast-deep-equal vs lodash

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my vs fast-deep-equal

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getElementById vs querySelector vs window

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Trimming multiple leading/trailing characters, no set constructor overhead

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Trimming multiple leading/trailing characters

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slice VS splice VS shift VS length adjust: who is the fastest to keep constant size

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

Var vs Let v2

Just a simple test with var/let performance in for loop

indexOf >-1 vs includes

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Multiple match calls vs multiple selector fix

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