Run results for: replaceAll vs regex replace

Run details:

User agent: Mozilla/5.0 (Linux; Android 7.0; SM-G920F Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Mobile Safari/537.36

Browser: Chrome Mobile 67

Operating system: Android 7.0

Device Platform: Mobile

Date tested: 6 years ago

Test name	Executions per second
replace regex	1046435.9 Ops/sec
replace All	143146.2 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