Run results for: .at vs length -1

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Browser: Chrome 146

Operating system: Windows

Device Platform: Desktop

Date tested: 4 months ago

array[array.length - 1]

206.4M/s

array.at(-1)

202.6M/s

View exact numbers

Test name	Executions per second
✓ array[array.length - 1]	206,421,920 Ops/sec
array.at(-1)	202,625,008 Ops/sec

Script Preparation code:

var array = Array.from({length: 100}).map(Math.random);

Tests: