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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/110.0

Browser: Firefox 110

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
array[array.length - 1]	1538200000.0 Ops/sec
array.at(-1)	1296946000.0 Ops/sec

Script Preparation code:

var array = [1,2,3];

Tests: