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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0

Browser: Firefox 114

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

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

Tests: