Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Date constructor

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lodash groupBy vs Array.reduce 100k with array push

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ES6 Class vs Prototype vs Object Literal 3

Test the speed and memory usage using 3 different techniques for constructing class objects.

Slice vs toSpliced

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Access to Proxy vs Object vs plain proxy

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arr.include vs binary search on sorted array vs Map.has() vs Set.has() vs Object[]

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Object.assign vs spread vs _.extend on big data

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Remove undefined/null values from object - Lodash PickBy vs Native

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Promise vs Async Await(2)

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Spread Operator vs structuredClone

Spread Operator vs structuredClone

JSON Stringify with Circular Reference Speed Test

This benchmark tests whether the speed or JSON.stringify changes with object size

array.includes vs. set.has on the fly

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promise vs callback 123

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Filtering and mapping with .filter(...).map(...) vs .flatMap(...) vs custom filterMap(...)

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lodash/keyBy vs native reduce vs Object.groupBy 2

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Obfuscator vs. non obfuscated

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Set->Array.from vs iterative pushing

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Promise vs async vs callbacks

Promise vs async vs callbacks

Object key access vs array find vs Set

Test speed of object access by key vs array find to find object

lodash has vs object.hasOwn

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forloop performance test

save length of the array in the variable vs get it the loop

Replace String vs Replace Regex

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set vs array lookup

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React: useMemo vs inline computation

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useMemo vs plain length check

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