MeasureThat.net

Run results for: Single vs multiple regex replace calls

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0
Firefox 94
Windows
Desktop
3 years ago
Test name Executions per second
Multiple, regex 3191399.2 Ops/sec
Single, regex 3133667.2 Ops/sec
Single, group regex 3219941.2 Ops/sec
No regex 6336005.5 Ops/sec
Script Preparation code:
AخA
 
var str = "Et inventore ut est. Illum dolorem similique odit. Velit necessitatibus unde nostrum sequi ut pariatur suscipit sit magnam. Cum esse sed quod aut id. Recusandae vel commodi."
Tests:

  • Multiple, regex

     
    str = str.replace(/a/g, '').replace(/e/g,'')

  • Single, regex

     
    str = str.replace(/a|e/g, '')

  • Single, group regex

     
    str = str.replace(/[ae]+/g, '')

  • No regex

     
    str = str.replace('a', '').replace('e','')