Run results for: array[array.length - 1] vs array.at(-1) 4

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0

Browser: Firefox 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
array.at(-1)	287691712.0 Ops/sec
array[array.length - 1]	460745568.0 Ops/sec

Script Preparation code:

var array = [1,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3,2,3];

Tests: