Run results for: Multiple replace calls vs string replace by regexp

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Replace regex	8400712.0 Ops/sec
Replace 2 times	8963726.0 Ops/sec

Script Preparation code:

var strIn = '<InLine><Linear>asdfqwer1234zxcv</Linear></InLine>';
var mapper = { '<InLine>': '<InLine>789', '<Linear>': '<Linear skipoffset>' };
var key1 = '<InLine>';
var key2 = '<Linear>';
var strOut = '';
var regex = /<InLine>|<Linear>/g;

Tests:

Replace regex
strOut = strIn.replace(regex, (key) => { return mapper[key]; });
Replace 2 times
strOut = strIn.replace(key1, mapper[key1]).replace(key2, mapper[key2]);

Run results for: Multiple replace calls vs string replace by regexp

Replace regex

Replace 2 times