Format telephone and credit card numbers in AngularJS

Question

Question one (formatting telephone number):

I\'m having to format a telephone number in AngularJS but there is no filter for it. Is there a way to u

Answer 1

Simple filter something like this (use numeric class on input end filter charchter in []):

<script type="text/javascript">
// Only allow number input
$('.numeric').keyup(function () {
    this.value = this.value.replace(/[^0-9+-\.\,\;\:\s()]/g, ''); // this is filter for telefon number !!!
});

Answer 2

This is the simple way. As basic I took it from http://codepen.io/rpdasilva/pen/DpbFf, and done some changes. For now code is more simply. And you can get: in controller - "4124561232", in view "(412) 456-1232"

Filter:

myApp.filter 'tel', ->
  (tel) ->
    if !tel
      return ''
    value = tel.toString().trim().replace(/^\+/, '')

    city = undefined
    number = undefined
    res = null
    switch value.length
      when 1, 2, 3
        city = value
      else
        city = value.slice(0, 3)
        number = value.slice(3)
    if number
      if number.length > 3
        number = number.slice(0, 3) + '-' + number.slice(3, 7)
      else
        number = number
      res = ('(' + city + ') ' + number).trim()
    else
      res = '(' + city
    return res

And directive:

myApp.directive 'phoneInput', ($filter, $browser) ->

  require: 'ngModel'
  scope:
    phone: '=ngModel'
  link: ($scope, $element, $attrs) ->

    $scope.$watch "phone", (newVal, oldVal) ->
      value = newVal.toString().replace(/[^0-9]/g, '').slice 0, 10
      $scope.phone = value
      $element.val $filter('tel')(value, false)
      return
    return

Answer 3

As shailbenq suggested, phoneformat is awesome.

Include phone format in your website. Create a filter for the angular module or your application.

angular.module('ng')
.filter('tel', function () {
    return function (phoneNumber) {
        if (!phoneNumber)
            return phoneNumber;

        return formatLocal('US', phoneNumber); 
    }
});

Then you can use the filter in your HTML.

{{phone|tel}} 
OR
<span ng-bind="phone|tel"></span>

If you want to use the filter in your controller.

var number = '5553219876';
var newNumber = $filter('tel')(number);

Answer 4

Angular-ui has a directive for masking input. Maybe this is what you want for masking (unfortunately, the documentation isn't that great):

http://angular-ui.github.com/

I don't think this will help with obfuscating the credit card number, though.

Answer 5

I took aberke's solution and modified it to suit my taste.

• It produces a single input element
• It optionally accepts extensions
• For US numbers it skips the leading country code
• Standard naming conventions
• Uses class from using code; doesn't make up a class
• Allows use of any other attributes allowed on an input element

My Code Pen

var myApp = angular.module('myApp', []);

myApp.controller('exampleController',
  function exampleController($scope) {
    $scope.user = { profile: {HomePhone: '(719) 465-0001 x1234'}};
    $scope.homePhonePrompt = "Home Phone";
  });

myApp
/*
    Intended use:
    <phone-number placeholder='prompt' model='someModel.phonenumber' />
    Where: 
      someModel.phonenumber: {String} value which to bind formatted or unformatted phone number

    prompt: {String} text to keep in placeholder when no numeric input entered
*/
.directive('phoneNumber',
  ['$filter',
  function ($filter) {
    function link(scope, element, attributes) {

      // scope.inputValue is the value of input element used in template
      scope.inputValue = scope.phoneNumberModel;

      scope.$watch('inputValue', function (value, oldValue) {

        value = String(value);
        var number = value.replace(/[^0-9]+/g, '');
        scope.inputValue = $filter('phoneNumber')(number, scope.allowExtension);
        scope.phoneNumberModel = scope.inputValue;
      });
    }

    return {
      link: link,
      restrict: 'E',
      replace: true,
      scope: {
        phoneNumberPlaceholder: '@placeholder',
        phoneNumberModel: '=model',
        allowExtension: '=extension'
      },
      template: '<input ng-model="inputValue" type="tel" placeholder="{{phoneNumberPlaceholder}}" />'
    };
  }
  ]
)
/* 
    Format phonenumber as: (aaa) ppp-nnnnxeeeee
    or as close as possible if phonenumber length is not 10
    does not allow country code or extensions > 5 characters long
*/
.filter('phoneNumber', 
  function() {
    return function(number, allowExtension) {
      /* 
      @param {Number | String} number - Number that will be formatted as telephone number
      Returns formatted number: (###) ###-#### x #####
      if number.length < 4: ###
      else if number.length < 7: (###) ###
      removes country codes
      */
      if (!number) {
        return '';
      }

      number = String(number);
      number = number.replace(/[^0-9]+/g, '');
      
      // Will return formattedNumber. 
      // If phonenumber isn't longer than an area code, just show number
      var formattedNumber = number;

      // if the first character is '1', strip it out 
      var c = (number[0] == '1') ? '1 ' : '';
      number = number[0] == '1' ? number.slice(1) : number;

      // (###) ###-#### as (areaCode) prefix-endxextension
      var areaCode = number.substring(0, 3);
      var prefix = number.substring(3, 6);
      var end = number.substring(6, 10);
      var extension = number.substring(10, 15);

      if (prefix) {
        //formattedNumber = (c + "(" + area + ") " + front);
        formattedNumber = ("(" + areaCode + ") " + prefix);
      }
      if (end) {
        formattedNumber += ("-" + end);
      }
      if (allowExtension && extension) {
        formattedNumber += ("x" + extension);
      }
      return formattedNumber;
    };
  }
);

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="exampleController">
  <p>Phone Number Value: {{ user.profile.HomePhone || 'null' }}</p>
  <p>Formatted Phone Number: {{ user.profile.HomePhone | phoneNumber }}</p>
        <phone-number id="homePhone"
                      class="form-control" 
                      placeholder="Home Phone" 
                      model="user.profile.HomePhone"
                      ng-required="!(user.profile.HomePhone.length || user.profile.BusinessPhone.length || user.profile.MobilePhone.length)" />
</div>