Need to get Zip Code from An Address using Regex in Javascript

Question

I need to extract Zip/Postal Code out of an address in javascript using Regex.

The address that i am passing currently is :

Vittal Mallya Road, KG Halli, Sampangi Rama Nagar, Bangalore, Karnataka 560001, India

The regex that i have formed for getting the Zip Code is :

var Zip=results[0].formatted_address; Zip = Zip.replace( /^\D+/g, '');

The output that i am getting is 560001, India instead of only 560001. Also, i want to ignore any number that may come in the beginning of the address like Door Number/House/Street Number since i am only concerned with Zip Code. Moreover, it should also work in case we pass a UK/USA Address containing the respective Zip Code. Any help in this matter will be highly appreciated.

Answer 1

Take a look at your regex in action: regexr.com

^\D+

It matches from begining of line (^) any non-digit (\D) char,
Meaning it will start at beginning of line and end at first number, in your case it will match:

Vittal Mallya Road, KG Halli, Sampangi Rama Nagar, Bangalore, Karnataka 

Then you delete this match, leaving 560001, India


You want \d{6} - matches any digit 6 times, or 6 digits.

Then you can extract value with Pattern and Matcher