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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

unshift an array

23K/s

concat an array

3K/s

spread on array

98/s

View exact numbers

Script Preparation code:

var array = [2,3,4];
var x = [-1,0,1];

Tests: