Run results for: replace vs custom replace

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36

Browser: Chrome 88

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
DoReplace	8100884.5 Ops/sec
Replace	5030237.5 Ops/sec

Script Preparation code:

function doReplace(str) {
    if (str != null && str.length > 0 && str.charAt(str.length - 5) == '/test') {
        str = str.substring(0, str.length - 5);
    }
    return str;
}

Tests:

DoReplace
var res = doReplace('https://goog/test');
Replace
var res1 = 'https://goog/test'.replace('/test');

Run results for: replace vs custom replace

replace vs custom replace

DoReplace

Replace