Run results for: regex vs double replace vs substring

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 144

Operating system: Android

Device Platform: Mobile

Date tested: 4 months ago

Script Preparation code:

var testStr = '[marketCode::US]';
var outputStr = '';

Tests: