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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

toLowerCase()

15.4M/s

toLowerCase() FAIL

13.1M/s

Regex

5.1M/s

Regex FAIL

5.0M/s

localeCompare() FAIL

333K/s

localeCompare()

331K/s

View exact numbers

Script Preparation code:

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

Tests: