Run results for: ToLower vs ToUpper

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

ToLower

9K/s

ToUpper

3K/s

View exact numbers

Test name	Executions per second
✓ ToLower	9,298 Ops/sec
ToUpper	3,456 Ops/sec

Script Preparation code:

var data = []

for (let i = 0; i < 5000; ++i) data.push('toto')
data.push('titi')
for (let i = 0; i < 2500; ++i) data.push('toto')

Tests: