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Case insensitive regex vs toLowerCase() then regex (v13)

Revision 13 of this benchmark created by html() vs is() on August 17, 2014

Description

Out of curiosity, I wanted to know what would be faster; running a case insensitive regular expression, on a string, or converting the string to lower/upper case and running a normal, case sensitive regular expression.

Setup

var value = 'This iS a StRinG!',
        match;

Test runner

Ready to run.

Testing in
Test		Ops/sec
reg	`if(/string/i.test(value))alert('YES');`	ready
simple	`if('string'==value.toLowerCase())alert('YES');`	ready
toUpperCase() and case sensitive regular expression	`match = /STRING/.test(value.toUpperCase());`	ready
Simple string match	`match = value == 'string';`	ready
Multiple single string matches	`match = (value == 'string') \|\| (value == 'STRING');`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published by GreenImp on June 24, 2013
Revision 3: published by bitTrix on September 19, 2013
Revision 4: published on December 6, 2013
Revision 5: published on January 3, 2014
Revision 7: published by Magnus on March 31, 2014
Revision 8: published on April 17, 2014
Revision 10: published by HItesh Aneja on August 6, 2014
Revision 11: published on August 13, 2014
Revision 12: published on August 13, 2014
Revision 13: published by html() vs is() on August 17, 2014