Run results for: split vs slice when getting the last element of an array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

split case

44.6M/s

split + slice case

29.0M/s

View exact numbers

Test name	Executions per second
✓ split case	44,567,644 Ops/sec
split + slice case	28,970,976 Ops/sec

Tests:

split case
const text = 'input_11_1000'; const arr = text.split('_'); const last = arr[arr.length - 1];
split + slice case
const text = 'input_11_1000'; const arr = text.split('_'); const lastElement = arr.slice(-1);