Run results for: Concat() vs. Unshift()

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; CPH1803) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.82 Mobile Safari/537.36

Browser: Chrome Mobile 90

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Concat()	3781.8 Ops/sec
Unshift()	3172.3 Ops/sec

Script Preparation code:

var arr = ['', '', ''];

Tests: