Run results for: replaceAll vs regex replace

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

replace regex

3.1M/s

replace All

1.1M/s

View exact numbers

Test name	Executions per second
✓ replace regex	3,129,002 Ops/sec
replace All	1,097,889 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(" ", "+");