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())
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    regex
    trim
    trimStart
    trimEnd

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 20 days ago)
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 on Windows
View result in a separate tab
Test name Executions per second
regex 5549701.0 Ops/sec
trim 10098110.0 Ops/sec
trimStart 10933349.0 Ops/sec
trimEnd 11619358.0 Ops/sec