Run results for: Javascript: Case insensitive string comparison performance inc. regex

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

toLowerCase()

68.7M/s

toLowerCase() FAIL

41.5M/s

Regex FAIL

7.2M/s

Regex

7.2M/s

localeCompare() FAIL

299K/s

localeCompare()

281K/s

View exact numbers

Script Preparation code:

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

Tests: