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Run results for:
char index vs charAt() for non-zero index
Compare methods for testing string's beggining character.
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<iframe src="https://measurethat.net/Embed?id=588049" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0
Browser:
Firefox 130
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
character index
106663160.0 Ops/sec
charAt()
101421720.0 Ops/sec
Script Preparation code:
var str = '!foo bar baz'; var noop = Function.prototype;
Tests:
character index
if (str[5] === 'b') noop();
charAt()
if (str.charAt(5) === 'b') noop();