Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Remove by splice vs 2 slice

Deletion of an element from an array.

undefined vs hasOwnProperty

Object lookup performance

Array.prototype.join vs JSON.stringify

Array.prototype.join vs JSON.stringify

typeof boolean vs === true || === false

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rest parameters vs arguments

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remove last char2

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array vs int32array without conversion

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querySelectorAll vs getElementsByTagName 2z

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Which is faster, Coercing or inequality ( !something===true or something!==true)

Checking if evaluating a value is not equal is faster or slower than coercing whether the value is true

sliceeee

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filtermap vs flatmap

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toString vs Stringify vs backticks

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TEST SUM OF DIGITS

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For in vs Object.*.forEach

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For in vs Object.keys.forEach 10000

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array vs int32array with conversion

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Reduce vs Filter/Map vs Map/Filter

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arrrrrrr

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JavaScript Object.assign vs for in loop

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RegExp vs substring

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reduce.concat() vs flat(1) vs custom

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

reduce.concat() vs flat(1)

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

Bitmask implicit boolean vs bitmask explicit equals

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array vs Float64Array vs Float32Array

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Array.prototype.filter vs handmade with for loop

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