Run results for: manual replace vs regex replace

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Browser: Chrome 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
replace manual	4482793.5 Ops/sec
replace regex	3214358.8 Ops/sec

Script Preparation code:

String.prototype.replaceAll = function(search, replacement) {
    var target = this;
    return target.replace(new RegExp(search, 'g'), replacement);
};

Tests:

replace manual
"https://www.testurl.com" .replace('www.', '') .replace('http://', '') .replace('https://', '');
replace regex
"https://www.testurl.com".replace(new RegExp(/^(https?:\/\/)?(www\.)?/, 'g'), '');

Run results for: manual replace vs regex replace

replace manual

replace regex