Run results for: Array.at(-1) vs. Array.length - 1

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

const LEN - 1

163.1M/s

.at(-1)

160.4M/s

length - 1

153.3M/s

View exact numbers

Script Preparation code:

var LEN = 3000;
var arr = new Array(LEN).fill(0).map((_, i) => i);

Tests: