Run results for: array join vs toString js

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.0; Vivo XI PLUS) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.120 Mobile Safari/537.36

Browser: Chrome Mobile 91

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
join	827165.1 Ops/sec
toString	793894.4 Ops/sec

Script Preparation code:

var arr = ['1','2','3','4','5','6','7','8']

Tests: