Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

map vs obj creating and accessing

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map vs obj xzdd

bench

test newsletter_signup

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window.getComputedStyle vs. getBoundingClientRect vs clientHeight vs elementFromPoint

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fzstd vs fflate (version: 2)

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fzstd vs fflate

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Optional chaining array access without local cache vars vs optional chaining array access with local cache vars

Testing with nested sensor data

filter vs for loop splice

comparing array filter vs repeated splicing

standard "for" vs "for...of"

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splice vs reassignment vs arr.length & push

Compares the speed of array reassignment methods on small arrays for known values

indexed for vs for...of

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add objects on loop

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selector api

getElementById, getElementsByClassName, querySelector, querySelectorAll

Luxon vs moment vs Date

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for vs for...of vs .map vs .forEach

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JavaScript Convert Value to String: String() vs .toString() vs `${value}` vs ("" +) vs (+ "")

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String() vs .toString() vs `${num}` vs ("" +) vs (+ "")

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remark vs markdown-it vs micromark parser Jan 2026

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JavaScript String Concatenation: String Append vs String.prototype.concat vs Array.prototype.join

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JavaScript Array Shallow Copy: Array.from vs Spread Syntax vs Array.prototype.slice vs Array.prototype.concat

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js spread vs push on new array

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Iterate X times

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Lodash.js vs instanceof Array vs Array

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Find the best ApiListWrapper.findBy() performance

Evaluate the best performance of the .findBy method.

ApiListWrapper .find() implementations

Evaluate the pers performance of the .find method.