Run results for: Math.atan2(...arr) v. Math.atan2(arr[0], arr[1])

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 OPR/126.0.0.0 (Edition developer)

Browser: Opera 126

Operating system: Windows

Device Platform: Desktop

Date tested: 4 months ago

Test name	Executions per second
...arr	156.4 Ops/sec
arr[0], arr[1]	300.9 Ops/sec

Script Preparation code:

var numbers = Array(100000).fill(null).map(x => [Math.random()*100, Math.random()*100])

Tests:

...arr
numbers.forEach(x => Math.atan2(...x));
arr[0], arr[1]
numbers.forEach(x => Math.atan2(x[0], x[1]));