Javascript code for validating mobile number

In this example we have created a Mobile Number Validation Form that displays the Mobile Number, Phone No. We have used Java Script to validate the Mobile Number to 10 digits and Phone Number to 10 Digits.

We have also used Java Script to get the valued entered in the form and displayed it as the user clicks Submit button.

For example if you operate in a single country, and telephone numbers are captured to be used by a human operator, you might not need them.

But for anything remotely automated – such as sending SMS messages – or to validate them effectively, you’ll need to capture the country prefix.

If a programmer enters a wrong phone number or mobile number or enters email-id in a different format, it shows an error message and asks the user the correct phone number and email-id.

Form Validation provides the built-in phone validator to validate the phone number in various countries.

From abroad, to call a UK number you need to drop the leading zero and prefix with the dialing code 44: Thankfully, there is a format we can use which enable us to get around these variations.

The user may alternatively write 919999999999, where 91 is country code ( 91 for India, but can accept any other like 110 or 52), or he may also write 09999999999 (first 0 for own country) Here, the user have 3 choices, @Schla Wiener Yes - he didn't specify any kind of limit as to how long the area code can be considered valid, so I just left it as "at least one number following the ".The countries library contains a bunch of geographical information which includes international dialing codes.Here is an excerpt from As you can see, this demonstrates that Austria uses the international dialing code 43. Well, using the magic of Lodash (or Underscore), there are a few ways in which we can query dialing code-related information.Names aren’t as straightforward as they sound, but provided you cater for edge cases and international variations – for example patronymics, the mononymous, or even just people with hyphenated surnames – you can’t go too far wrong (although plenty of applications and services do! Email addresses, while theoretically very easy to validate, have their own challenges – yet nevertheless, there are plenty of regular expressions in the wild that aren’t quite right. All sorts of external factors can have implications for telephone numbering.


Whole countries come and go, introducing new country prefixes.This example helps you validate an international phone number by using a different approach.


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