Run results for: Javascript: Case insensitive string comparison performance - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Linux

Device Platform: Desktop

Date tested: 10 months ago

Test name	Executions per second
toLowerCase()	637359300.0 Ops/sec
localeCompare()	199759.5 Ops/sec
toLowerCase() FAIL	724349500.0 Ops/sec
localeCompare() FAIL	199618.4 Ops/sec

Website performance monitoring

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)