Run results for: Javascript Slice vs String Index Addition

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Slice

194.0M/s

String addition

189.4M/s

View exact numbers

Test name	Executions per second
✓ Slice	193,962,736 Ops/sec
String addition	189,406,048 Ops/sec

Tests:

Slice
const s = "this is a test string" let newString = s.slice(0, 5)
String addition
const s = "this is a test string" let newString = s[0] + s[1] + s[2] + s[3] + s[4] + s[5]