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Run results for:
Array fill method vs for loop test (with map)
Array fill method vs for loop performance validation
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<iframe src="https://measurethat.net/Embed?id=623550" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Safari/605.1.15
Browser:
Safari 26
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
3 months ago
Test name
Executions per second
For Loop fill
184.4 Ops/sec
Array Fill
351.4 Ops/sec
Push
64.4 Ops/sec
Map
92.8 Ops/sec
Tests:
For Loop fill
let arrayTest = new Array(10000000); for (let i = 0; i < arrayTest.length; i++){ arrayTest[i] = 0; }
Array Fill
let arrayTest = new Array(10000000).fill(0);
Push
let arrayTest = []; for (let i = 0; i < 10000000; i++){ arrayTest.push(0); }
Map
let arrayTest = Array.from({ length: 10000000 }, () => 0)