Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

String() vs .toString() vs + string

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JSON.parse vs replace.split

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jQuery parents() vs closest() speed performance comparison

Comparing performance of: Parent vs Closest

Lodash cloneDeep vs deepFreeze vs deepClone vs JSON.parse(JSON.stringify())

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Lodash cloneDeep vs freeze vs monokee deepClone

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for vs foreach vs some vs for..of non-empty array square root 1000 elements no console

Compare loop performance

for vs foreach vs some vs for..of non-empty array square root 1000 elements

Compare loop performance

for vs foreach vs some vs for..of non-empty array square root

Compare loop performance

Array.prototype.concat vs spread operator larche

Compare the new ES6 spread operator with the traditional concat() method

flatMap() vs map().flat()

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Test long calcul

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startswith vs indexof??

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flatMap() vs map().filter() v2

flatMap vs filter map

flatMap() vs map().filter() v1

flatMap vs filter map

JSON vs JS

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slice vs substr vs substring (arbitrary arguments)

Compares slice, substr and substring to each other with arbitrary arguments

slice vs substr vs substring (with start index 0)

Compares slice, substr and substring to each other when the start index is 0

Array.filter vs. Array.indexOf + splice

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Array.forEach vs for(const value of array) vs index vs Array.reverse + reversed index

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uniq vs groupBy

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forEach concat vs reduce push vs forEach push vs reduce concat performance test 2

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Remove by reverse splice loop vs filter 2

Deletion of elements from an array.

Remove by reverse splice loop vs filter

Deletion of elements from an array.

Array loop vs foreach vs map 36000

36000

Object.create(null) vs Object literal - Creation and Iteration Performance (including Object.keys vs hasOwnPropertyCheck)

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