Run results for: spread vs concat vs unshift @ 100k

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; moto g fast) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 108

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Script Preparation code:

var array = [];
for (let i = 0; i < 100000; i++) {
  array.push(i)
}

Tests: