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Run results for:
JSON.parse vs string.split for numbers
This shows that JSON.parse can be faster than str.split
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<iframe src="https://measurethat.net/Embed?id=507969" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
JSON.parse
2713.2 Ops/sec
String.split
2029.1 Ops/sec
Script Preparation code:
var array = new Array(5000).fill('1').map(() => Math.random()); var strJson = JSON.stringify(array); var strComma = array.join(',');
Tests:
JSON.parse
JSON.parse(strJson);
String.split
strComma.split(',').map(Number)