Run results for: array[array.length - 1] vs array.at(-1) 1e5

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

array[array.length - 1]

1046.6M/s

array.at(-1)

956.5M/s

View exact numbers

Test name	Executions per second
✓ array[array.length - 1]	1,046,637,376 Ops/sec
array.at(-1)	956,520,192 Ops/sec

Script Preparation code:

var array = new Array(1e5).fill(1);

Tests: