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Tests the cost of repeatedly declaring a regular expression rather than just declaring it once

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var txt1 = 'mary is at home';
var txt2 = 'john is at home';
for(var i = 0; i < 100; i++) {
  txt1.match(/mary/);
  txt2.match(/mary/);
}

var txt1 = 'mary is at home';
var txt2 = 'john is at home';
var regex = /mary/;
for(var i = 0; i < 100; i++) {
  txt1.match(regex);
  txt2.match(regex);
}

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Shane O'Sullivan on 22nd September 2011
• Revision 2: published on 9th May 2012
• Revision 3: published on 5th January 2013

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