Run results for: split-join vs regex replace

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

split-join

5.5M/s

replace regex

5.1M/s

View exact numbers

Test name	Executions per second
✓ split-join	5,511,558 Ops/sec
replace regex	5,091,792 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, "+");
split-join
"this is it".split(" ").join("+");