Question

184

JQuery / JavaScript MAC Address Validation

rated 0 times [ 190] [ 6] / answers: 1 / hits: 22063 / 12 Years ago, fri, august 17, 2012, 12:00:00

Possible Duplicate:

What is a regular expression for a MAC Address?

I would like to validate a string to ensure that it is a valid MAC Address.

Any ideas in Jquery or Javascript?

I have the following:

var mystring= '004F78935612'  - This type of MAC Address

var rege = /([0-9a-fA-F][0-9a-fA-F]){5}([0-9a-fA-F][0-9a-fA-F])/;

alert(rege.test(mystring));

But its not all that accurate.

Ie. My tissue box is a valid MAC Address?!?

Thanks!

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

dillionsalvadorg

Add To Favorites

Follow

Total Points: 288

Total Questions: 103

Total Answers: 75

Location: South Korea

Member since Sat, Oct 2, 2021

3 Years ago

dillionsalvadorg questions

1 Dealing with multiple optional arguments in a javascript function

Tue, Mar 15, 22, 00:00, 2 Years ago

1 Date-fns RangeError: Invalid time value

Mon, Jun 14, 21, 00:00, 3 Years ago

1 Node Puppeteer, page.on( request ) throw a Request is already handled!

Wed, Jan 27, 21, 00:00, 3 Years ago

1 Show spinner while loading image in Vue.js

Tue, Jul 7, 20, 00:00, 4 Years ago

1 Uncaught (in promise) TypeError: Cannot read property of undefined, when try to catch API data in ReactJs

Sat, Jun 15, 19, 00:00, 5 Years ago

View All

answered 12 Years ago ezequiel · Accepted Answer

Taking the regular expression from this question, you would implement it like so:

var mystring= 'Hello';



var regex = /^([0-9A-F]{2}[:-]){5}([0-9A-F]{2})$/;



alert(regex.test(mystring));

http://jsfiddle.net/s2WDq/

This regular expression searches for the beginning of the string ^, then TWO hexidecimal digits [0-9A-F]{2}, then a colon or dash [:-], five times over (...){5}, then a final group of TWO hexidecimal digits [0-9A-F]{2}, and finally the end of the string $.

Edit: in response to your comment, Pinch, that format is not considered a valid MAC address. However, if you wanted to support it, simply add a ? in the right place:

/^([0-9A-F]{2}[:-]?){5}([0-9A-F]{2})$/

// question mark  ^ allows the colon or dash to be optional