Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Object.assign vs for in vs Object.entries+for of vs spread

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spread vs for loop vs array push vs slice vs Array.from

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cloneJson Perf (small json)

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Spread operator vs. Array.map

A comparison of the performance of the spread operator, [ ...array ], vs. Array.map(i => ...) and

cloneJson Perf (reg json)

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cloneJson Perf

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loop test 122

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Splitting and element access versus regex

Compare splitting a string and looking at a field versus extracting it with a regex

map filter vs reduce concat

Show time vs space complexity of either solution

map filter vs reduce

Show time vs space complexity of either solution

lodash merge vs object.assign vs spread (no intermediate vars)

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console.time overhead confirmed

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lodash map/max fusion 2

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lodash merge vs object.assign vs spread - kin

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toPairs, entries

lodash

undefined checks on property in if condition

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Array loop for vs for of vs foreach vs map

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Array loop for vs for of vs vs foreach vs map

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Object key vs Array Filter

Access an stored element through object property key vs array filtering. Util for handlers references, when you need to store handlers and have acces for them later.

destructuring vs for-in

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Lodash vs Native reduce - 2020 test

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querySelectorAll vs getElementsByTagName [for loop]

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Object Deep Copy with

Produce a deep copy of a Javascript object where nested objects are not simply references to the originals.

Concat arrays

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for vs for...of vs Array.reduce

Computing the sum of each item in an array via different looping mechanisms