Run results for: js native lowercase vs native uppercase

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0

Browser: Chrome 141

Operating system: Windows

Device Platform: Desktop

Date tested: 10 months ago

native toLowerCase

38.5M/s

native toUpperCase

18.3M/s

View exact numbers

Test name	Executions per second
✓ native toLowerCase	38,486,368 Ops/sec
native toUpperCase	18,298,874 Ops/sec

Script Preparation code:

var test = 'More Text for TESTING'

Tests: