MeasureThat.net

Run results for: small string split + join vs replace regex

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
Chrome 115
Windows
Desktop
one year ago
Test name Executions per second
regex 1192963.2 Ops/sec
split+join 2040878.9 Ops/sec
Script Preparation code:
AخA
 
var str = 'this is it';
Tests:

  • regex

     
    str.replace(/./g, "$&Z");

  • split+join

     
    str.split('').join('Z') + 'Z';