MeasureThat.net

Run results for: String compares (sensitive & insensitive & undefined)

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36
Chrome 105
Windows
Desktop
2 years ago
Test name Executions per second
LowerCase compare a&b 8036329.5 Ops/sec
Collator compare 3277209.8 Ops/sec
UpperCase compare 7423636.0 Ops/sec
Sensitive compare 9373343.0 Ops/sec
Lower a & c 8028903.0 Ops/sec
Lower a & d 8074987.0 Ops/sec
Undefined test & lower a&b 4329966.5 Ops/sec
Script Preparation code:
​x
 
var a = 'aBcD eFgH iJkLmN'
var b = 'AbCd eFgH iJkLmN'
var c = 'aBcD eFgH iJkLmNx'
var d = 'aBcD eFgH iJkLmn'
​
var enCollator = new Intl.Collator('en', { sensitivity: 'accent' });
Tests:

  • LowerCase compare a&b

     
    a.toLowerCase() === b.toLowerCase()

  • Collator compare

     
    enCollator.compare(a, b) === 0

  • UpperCase compare

     
    a.toUpperCase() === b.toUpperCase()

  • Sensitive compare

     
    a === b

  • Lower a & c

     
    a.toLowerCase() === c.toLowerCase()

  • Lower a & d

     
    a.toLowerCase() === d.toLowerCase()

  • Undefined test & lower a&b

     
    !!(a && b && a.toLowerCase() === b.toLowerCase())