Run results for: replaceAll vs regex replace vs regex replace2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

replace regex

10.8M/s

replace regex 2

9.0M/s

replace All

3.2M/s

View exact numbers

Test name	Executions per second
✓ replace regex	10,831,646 Ops/sec
replace regex 2	9,049,003 Ops/sec
replace All	3,220,660 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(" ", "+");
replace regex 2
"this is it".replace(/\s+/g, "+");