Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Deep cloning of array

Deep cloning of array in js

js array spread op with map vs array.from

No description provided

getAttribute + setAttribute vs dataset vs Map (for loop 1K)

Compare getAttribute & setAttribute with dataset

getAttribute + setAttribute vs dataset (for loop 1K)

Compare getAttribute & setAttribute with dataset

Callback vs Class method

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Benchmark different converter functions

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RegEx.test vs. String.includes vs. String.match WITH regex!

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Testing "prop in obj" vs "obj.prop === undefined" vs hasOwnProperty for undefined member

Which is the quicker for determining property presence?

withSomeCheck vs fullMapping

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moment vs date-fns 2025

It's not a deep validation; I'm just comparing ONE function that those two libraries have in common.

str split vs spread vs Array.from

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Bitwise flags checking

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structuredClone vs deepClone in large objects

This benchmark creates huge objects to be cloned by lodash's cloneDeep function vs the native structuredClone

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new Image vs img

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Array length to string 1

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2d array construction

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Html Canvas Draw

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array construction comparison extended

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JS Regex vs .startsWith vs .indexOf 2

fork of https://www.measurethat.net/Benchmarks/Show/975/11/regex-vs-indexof-vs-startswith-vs-substr

Compare clone object with cloneObject

Compare clone object

window.localStorage.setItem

No description provided

Overriding SVG transform attribute

Use SVGTransform API vs setAttribute()

Setting SVG transform attribute

Use SVGTransform API vs setAttribute()

Lodash isEqual test array of objects And Every 3 cases

Test on isEqual performance

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