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  <title>Page Title</title>
  <link href="|Roboto+Condensed" rel="stylesheet">
<body ng-app="MyApp" ng-controller="myController">

  <a href="" target="_blank">
    <h1 class="blog">Ng-ninja</h1>
  <h4>Everything you should know about $formatters and $parsers</h1>
  <input id="numberInput" ng-model="data" type="text" my-formatter-parser />
  <label>{{ data }}</label>


  width: 100%;
  height: 100%;
  background-color: #4b4b4b;
  font-family: Roboto;
  color: white;

  color: blue;
  color: yellow;

input {
  height: 30px;
  font-size: 21px;
  padding-left: 10px;

  font-weight: normal;


                angular.module('MyApp', [])
  .controller('myController', ['$scope', myController])
  .directive('myFormatterParser', myFormatterParser);

function myController($scope){
  $ = "9876543210";

function myFormatterParser(){

        return {
            restrict: 'A',
            require: 'ngModel',
            link: function (scope, element, attrs, modelCtrl) {

                // function that strips off characters other than numbers
                var getNumbers = function (inputValue) {
                    if (!inputValue) {
                        return '';

                    // retrieve numbers from the string
                    var thenum = inputValue.replace( /[^\d\.]*/g, '');
                    // if the input does not match expected value.. change the rendered view to correct format
                    if (thenum !== inputValue) {
                        modelCtrl.$setViewValue(thenum); // view value is updated
                        modelCtrl.$render(); // view is updated
                    // return only the numbers from string
                    return thenum;

                // when user changes input value from DOM
                modelCtrl.$parsers.push(function (modelValue) {
                    var value = getNumbers(modelValue);
                    return value;

                // when model value is updated
                modelCtrl.$formatters.push(function (modelValue) {
                    var value = getNumbers(modelValue);
                    return value;