Run results for: Javascript: Case insensitive string comparison + Collators performance

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

toLowerCase()

7.7M/s

toLowerCase() FAIL

7.1M/s

toUpperCase

7.0M/s

toUpperCase FAIL

6.9M/s

Collator compare: Fail

4.0M/s

Collator compare

3.4M/s

localeCompare() FAIL

161K/s

localeCompare() undef Culture

158K/s

View exact numbers

Test name	Executions per second
✓ toLowerCase()	7,654,464 Ops/sec
toLowerCase() FAIL	7,100,892 Ops/sec
toUpperCase	6,972,526 Ops/sec
toUpperCase FAIL	6,859,572 Ops/sec
Collator compare: Fail	3,964,102 Ops/sec
Collator compare	3,446,556 Ops/sec
localeCompare() FAIL	161,185 Ops/sec
localeCompare() undef Culture	158,225 Ops/sec

Script Preparation code:

var a = "John Doe"
var b = "john doe"
var c = "john smith"
var o = {
    sensitivity: 'accent'
}
var r = new Intl.Collator('en-US', o)

Tests: