Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

map vs reduce at mapping

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jsdlfkjsdlfkjsldkfj

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Large Object Enum vs String LIteral

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JavaScript spread operator vs Object.assign performance 2

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copyWithin: is it fast in Uint32Array

Comparing the performance between iteration and copyWithin in Uint32Array

TEST match vs exec on safari

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replaceAll vs regex replace . with ,

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Concat vs Spread vs flat

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local vs global regex performance in js functions (v2)

Do regular expressions become faster in javascript, when we put them in the global scope, or doesn't it matter when we declare them directly in a function?

reduce vs map + fromEntries vs reduce + Map

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isEmpty tests

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Get-Set object prop in 2-each-times vs trim in 1-each-time

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fill-fast

array file is faster than iteration

ES6 property get & getter function & direct access to object attribute

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LodashBigStructure(VM1)

teste

LodashBigStructure

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object property lookup: in operator vs undefined comparison

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var1!==null vs var1!==undefined vs var1!=="x"

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EventListener in parent vs EventListener in childs

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Testing var undefined comparison & checking it via object/array.

(1 in arguments) means to check if "2nd var" parameter is defined in arguments list in a function.

if(!variable) vs if(variable===undefined) performance

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Find Keys by loop or JSON stringify

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JSON.parse vs string.split 2

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benchmark assigment vs object.assign

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