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Run results for:
Split Join vs Basic string replace
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=512609" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Browser:
Chrome 122
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Replace (SIMPLE)
4800648.0 Ops/sec
Split and Join
414809.2 Ops/sec
Replace (REGEX)
209630.0 Ops/sec
Script Preparation code:
var str = 'Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxyAbcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy Abcd efghij klmnopqrstuv wxy';
Tests:
Replace (SIMPLE)
str.replace("m", "$&Z");
Split and Join
str.split('').join('Z') + 'Z';
Replace (REGEX)
str.replace(/./g, "$&Z");