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Run results for: str split vs regex replace

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Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0
Firefox 133
Linux
Desktop
5 months ago
Test name Executions per second
split 13533983.0 Ops/sec
regex 22511514.0 Ops/sec
Script Preparation code:
AخA
 
var str = '1234563242347.341342345';
var regex = /\..*$/;
Tests:

  • split

     
    str.split('.')[0];

  • regex

     
    str.replace(regex, '');