Run results for: spread vs concat vs unshift (2)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

Browser: Chrome 75

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Script Preparation code:

var array = [1,2,3];
var array2 = [11,22,33,44];

Tests: