Run results for: js replace vs substr

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.4

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
replace	3599315.0 Ops/sec
substr	4252398.0 Ops/sec

Script Preparation code:

var strIn = '@mol-fe/mol-fe-webpush-server-worker';
var strOut = '';

Tests: