Run results for: spread vs concat vs unshift for arrays

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 8 months ago

Benchmark engine: Benchmark.js

arrayUnshift123

17K/s

arrayConcat123

2K/s

arraySpread123

80/s

View exact numbers

Script Preparation code:

var array = [1,2,3,4,5,6,7,8,9];
var array2 = [1,1,1];

Tests: