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Run results for:
Array fill vs fill/from vs apply vs join
Fill an array with repeated elements
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=490816" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0
Browser:
Firefox 120
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Fill
78.3M/s
Fill/From
31.1M/s
Apply
9.6M/s
Join (only with single characters!)
6.2M/s
View exact numbers
Test name
Executions per second
✓
Fill
78,298,328 Ops/sec
Fill/From
31,051,720 Ops/sec
Apply
9,629,024 Ops/sec
Join (only with single characters!)
6,237,350 Ops/sec
Tests:
Fill
new Array(5).fill('abc');
Fill/From
Array.from({ length: 5 }).fill('abc')
Apply
Array.apply(null, Array(3)).map(_ => 'abc')
Join (only with single characters!)
Array(6).join('a').split('');