Latest Benchmarks

Browse the latest JavaScript performance benchmarks created by the community.

Object key vs Array index access

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Date.now() without floor vs static now() function

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Date.now() vs static now() function

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Object Deep Copy test 20240213-2

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

Slice vs Splice vs Shift vs pop

Compares the speed for removing 2 items from the beginning of an array

Slice vs Splice vs Shift 231

Compares the speed for removing 2 items from the beginning of an array

array indexOf vs includes vs some w/ largeish array

performance comparison of ways to find if an array contains a value

bool to int

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Array loop vs for loop vs for loop cached

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Object.groupBy vs Array.reduce 100k

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spread vs concat for adding new value to array

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ramda-path-vs-lodash-get-vs-custom-deepak

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splice vs unshift by winensf

bla bla

ES6 Class vs Prototype vs Object Literal vs Function vs Function with object destructuring

Test the speed and memory usage using 4 different techniques for constructing class objects (or rather calling functions).

lastIndexOf vs split vs regex

testing speed

lastIndexOf vs split

testing speed

Spread vs concat to let var

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querySelector vs tag

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document querySelector

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Regexp test for finding invalid character

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Ramda (/w transducer) vs. Lodash v3

Compares performance on the same task using Lodash vs two styles of Ramda vs two styles of "native" Javascript. In all cases the task is pulling "counter" property from each item in an array, filtering out odd items, squaring them, then returning those squared values that have less than two digits.

Ramda (/w transducer) vs. Lodash v2

Compares performance on the same task using Lodash vs two styles of Ramda vs two styles of "native" Javascript. In all cases the task is pulling "counter" property from each item in an array, filtering out odd items, squaring them, then returning those squared values that have less than two digits.

graph or reduce

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JS BigInt big number performance v12

Compare Number vs BigInt for big numbers

Array Map Vs Lodash Map (1)

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