jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

Loop Test

Benchmark created on March 23, 2023

Setup

const numbers = [
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
53,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
54,
55,
55,
55,
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55,
55,
55,
55,
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55,
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55,
55,
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55,
55,
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55,
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55,
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56,
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64,
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68,
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68,
68,
68,
68,
68,
68,
68,
68,
68,
68,
68,
]

Test runner

Ready to run.

Testing in
Test		Ops/sec
forEach loop	`const distinct = new Set(); numbers.forEach(x => { const voyageNo = x; if (voyageNo \|\| voyageNo === 0) { distinct.add(x); } });`	ready
for loop	`const distinct = new Set(); for (let i = 0; i < numbers.length; i++) { const voyageNo = numbers[i]; if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } }`	ready
for in	`const distinct = new Set(); for (var key in numbers) { const voyageNo = numbers[key]; if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } }`	ready
for of	`const distinct = new Set(); for (var value of numbers) { const voyageNo = value; if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } }`	ready
map	`const distinct = new Set(); numbers.map(x => { const voyageNo = x; if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } });`	ready
filter	`const distinct = new Set(); numbers.filter(x => { const voyageNo = x; if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } });`	ready
reduce	`numbers.reduce((distinct, voyageNo) => { if (voyageNo \|\| voyageNo === 0) { distinct.add(voyageNo); } return distinct; }, new Set());`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on March 23, 2023