如何区分国家/地区代码形式的电话号码？

Question

I was having lots of phone numbers [eg: 1-123-456-7890] in my DB. What I have to do is, separate country dialing code [in this case 1 which is for US/Canada] from the phone number.

What I have tried is - I made a json list of all countries and when getting loading the page, I separated phone number and country code. and it was working fine till I got some numbers which starts with '+' or having only 6 or 7 digits in the phone number(in this case there is no country code).

I have tried google's GeoName API but it doesn't return what I was expecting. And i couldn't find any API for getting the country code form the phone number.

Answer 1

This is one of the sort of problems which is quite complicated. I would suggest to use a library like libphonenumber-js .

I created a little helper function, that uses the US country code by default:

 function getCountryCode( input ) { // Set default country code to US if no real country code is specified const defaultCountryCode = input.substr( 0, 1 ) !== '+' ? 'US' : null; let formatted = new libphonenumber.asYouType( defaultCountryCode ).input( input ); let countryCode = ''; let withoutCountryCode = formatted; if ( defaultCountryCode === 'US' ) { countryCode = '+1'; formatted = '+1 ' + formatted; } else { const parts = formatted.split( ' ' ); countryCode = parts.length > 1 ? parts.shift() : ''; withoutCountryCode = parts.join( ' ' ); } return { formatted, withoutCountryCode, countryCode, } } console.log( getCountryCode( '1-123-456-7890' ) ); console.log( getCountryCode( '+12133734' ) ); console.log( getCountryCode( '+49300200100' ) ); console.log( getCountryCode( '621234567' ) ); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/libphonenumber-js/0.4.27/libphonenumber-js.min.js"></script>