JavaScript: How to use regular expressions to format a phone number

Let's say I have a phone number like 8005551212 that came in from a database. I'd like to become (800) 555-1212 and display it on the screen.

Can someone please show me how to accomplish this using regular expressions in JavaScript?

Thanks.
elepilAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Fernando SotoRetiredCommented:
Hi elepil;

the below code snippet should do what you want.

// Test Data
var phone = "8005551212";
// Regular Expression pattern
var pattern = /(\d{3})(\d{3})(\d{4})/; 
// Reformat the 10 digit phone number
var phoneFormatted = phone.replace(pattern, "($1) $2-$3");

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
elepilAuthor Commented:
You know, I was doing it just the way you did, except I was using the '\' for the backreferences. Now I know it's the '$'.

Thanks for your help!
0
Fernando SotoRetiredCommented:
Not a problem elepil, glad I was able to help.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
JavaScript

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.