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Run results for:
string indexer or charAt
Is array access to a string faster than calling charAt?
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<iframe src="https://measurethat.net/Embed?id=629459" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0
Browser:
Firefox 140
Operating system:
Windows
Device Platform:
Desktop
Date tested:
23 days ago
Test name
Executions per second
array access
817249.8 Ops/sec
charAt
937402.8 Ops/sec
Script Preparation code:
s = 'abcdefghijklmnopqrstuvwxzy'
Tests:
array access
r = '' for (let i = 0, l = s.length; i < l; ++i) { r += s[i] }
charAt
r = '' for (let i = 0, l = s.length; i < l; ++i) { r += s.charAt(i) }