Run results for: replaceAll vs regex replace

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:103.0) Gecko/103.0 Firefox/103.0

Browser: Firefox Mobile 103

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
replace regex	3309847.0 Ops/sec
replace All	1438389.6 Ops/sec

Script Preparation code:

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

Tests:

replace regex
"this is it".replace(/ /g, "+");
replace All
"this is it".replaceAll(" ", "+");

Run results for: replaceAll vs regex replace

replace regex

replace All