Run results for: unshift vs concat vs spread vs unshift.apply of another array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var arr1 = [];
for (let i=0; i<100; ++i)
	arr1.push(i);

var arr2 = [];
for (let i=0; i<100; ++i)
	arr2.push(i);

Tests: