Run results for: Javascript: Case insensitive string comparison performance

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 26

Operating system: iOS 18.7

Device Platform: Mobile

Date tested: 6 months ago

Benchmark engine: Benchmark.js

toLowerCase()

284.5M/s

toLowerCase() FAIL

252.3M/s

localeCompare()

199K/s

localeCompare() FAIL

176K/s

View exact numbers

Script Preparation code:

var a = "John Doe"
var b = "john doe"
var c = "john smith"
var o = {
    sensitivity: 'base'
}

Tests: