Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

map map vs for for vs map map

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Bind vs Return Anonymous Function

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Generate random string

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for vs foreach vs some vs for..of vs for..of with entries

Compare loop performance

innerHTML vs. replaceChildren (iframe insertion) v3

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innerHTML vs. replaceChildren (iframe insertion) v2

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innerHTML vs. replaceChildren (iframe insertion)

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flat() vs flatMap()

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get field from object v2

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get field from object

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Object.keys + map vs for...in + push

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[JS] Object.keys + map vs for...in + push

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JavaScript spread operator vs Object.assign performance, small objects v3

For small objects, 1 value change only

JavaScript spread operator vs Object.assign performance, large objects v3

For large objects, 1 value change only

JavaScript spread operator vs Object.assign performance, large objects v2

For large objects, 1 value change only

Math.random() vs. random() v2

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Unit Converters Benchmark

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pure mergeSort - vs - memoized mergeSort

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JavaScript spread operator vs Object.assign performance, large objects

For large objects, 1 value change only

Math.random() vs. random()

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JSON.stringify vs structuredClone vs simple deepCopyObject 512

JSON.stringify vs structuredClone vs simple deepCopyObject 512

Object.fromEntries(Array.map) vs Array.reduce (with different methods)

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Long NodeList to array

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JSON.stringify vs structuredClone vs simple deepCopyObject 5

JSON.stringify vs structuredClone vs simple deepCopyObject 5

JSON.stringify vs structuredClone vs simple deepCopyObject 4

JSON.stringify vs structuredClone vs simple deepCopyObject 4