MeasureThat.net

Run results for: Fastest way to detect an empty string - better test cases

testing removing beginning and end whitespace vs trim

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Chrome 134
Windows
Desktop
one month ago
Test name Executions per second
regex 5604553.5 Ops/sec
trim 9394265.0 Ops/sec
trimStart 10001834.0 Ops/sec
trimEnd 8820145.0 Ops/sec
Script Preparation code:
AخA
 
var strings = ['    ', '    a', 'a    ', '  a  '];
Tests:

  • regex

     
    strings.filter(s=>/^\s+$/.test(s));

  • trim

     
    strings.filter(s=>!s.trim())

  • trimStart

     
    strings.filter(s=>s.trimStart())

  • trimEnd

     
    strings.filter(s=>s.trimEnd())