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Run results for:
Javascript: Case insensitive string comparison performance
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0
Browser:
Firefox 120
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
toLowerCase()
826293568.0 Ops/sec
localeCompare()
499226.8 Ops/sec
toLowerCase() FAIL
834437248.0 Ops/sec
localeCompare() FAIL
504552.9 Ops/sec
Script Preparation code:
var a = "John Doe" var b = "john doe" var c = "john smith" var o = { sensitivity: 'base' }
Tests:
toLowerCase()
a.toLowerCase() === b.toLowerCase()
localeCompare()
a.localeCompare(b,undefined,o)
toLowerCase() FAIL
c.toLowerCase() === b.toLowerCase()
localeCompare() FAIL
c.localeCompare(b,undefined,o)