Format phone input with country code

FormatPhone.js

// pretty-format phone inputs
( function( $ ) {
    $(function() {
       $('.gform_wrapper').on('input','[type="tel"]' , function (){
         var phoneNumber = $(this).val();
            
          // Remove Non numeric input
         var numericPhoneNumber = phoneNumber.replace(/\D/g, '');
          

          var digitsBeforeLast10 = '';
          if(numericPhoneNumber.length > 10) { //Check if the digits are greater than 10 then include country code in the format
             digitsBeforeLast10 = '+'+numericPhoneNumber.slice(-12, -10); // GET the digits before the last 10 digits and will serve as the country code ex : +1
         }
        
        // Get the last 10 digits of the number in the input
         var last10Digits = numericPhoneNumber.slice(-10);
       

         //Format the number with the country code ex : +1 (111) 111-1111
          var s = "";
          last10Digits.length
                    ? ((s = "(" + last10Digits.substr(0, 3)),
                      last10Digits.length >= 3 && (3 != last10Digits.length ) && (s += ") "), // format the first 3 digits as (XXX)
                      (s += last10Digits.substr(3, 3)),
                      last10Digits.length >= 6 && (6 != last10Digits.length ) && (s += "-"), // format the next 3 digits as XXX-
                      (s += last10Digits.substr(6, 4)))                                  // get the last 4 digits XXXX
                    : 1 == e.length && "(" == e[0] && (s = "("),
                    $(this).val(digitsBeforeLast10 + ' ' + s); // format number as +X (XXX) XXX-XXXX
         
       });
      
       
  
    })
})( jQuery );