Shopping Cart in AngularJS

by Faisal Khan Janjua

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<script>
var app = angular.module("myShoppingList", []); 
app.controller("myCtrl", function($scope) {
    $scope.products = ["Milk", "Bread", "Cheese"];
    $scope.addItem = function () {
        $scope.errortext = "";
        if (!$scope.addMe) {return;}
        if ($scope.products.indexOf($scope.addMe) == -1) {
            $scope.products.push($scope.addMe);
        } else {
            $scope.errortext = "The item is already in your shopping list.";
        }
    }
    $scope.removeItem = function (x) {
        $scope.errortext = "";    
        $scope.products.splice(x, 1);
    }
});
</script>
<div ng-app="myShoppingList" ng-cloak ng-controller="myCtrl" class="w3-card-2 w3-margin" style="max-width:400px;">
  <header class="w3-container w3-light-grey w3-padding-16">
    <h3>My Shopping List</h3>
  </header>
  <ul class="w3-ul">
    <li ng-repeat="x in products" class="w3-padding-16">{{x}}<span ng-click="removeItem($index)" style="cursor:pointer;" class="w3-right w3-margin-right">×</span></li>
  </ul>
  <div class="w3-container w3-light-grey w3-padding-16">
    <div class="w3-row w3-margin-top">
      <div class="w3-col s10">
        <input placeholder="Add shopping items here" ng-model="addMe" class="w3-input w3-border w3-padding">
      </div>
      <div class="w3-col s2">
        <button ng-click="addItem()" class="w3-btn w3-padding w3-green">Add</button>
      </div>
    </div>
    <p class="w3-padding-left w3-text-red">{{errortext}}</p>
  </div>
</div>
</body>

CSS

/* W3.CSS 2.84 Dec 2016 by Jan Egil and Borge Refsnes */
html{box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}
/* Extract from normalize.css by Nicolas Gallagher and Jonathan Neal git.io/normalize */
html{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}
article,aside,details,figcaption,figure,footer,header,main,menu,nav,section,summary{display:block}
audio,canvas,progress,video{display:inline-block}progress{vertical-align:baseline}
audio:not([controls]){display:none;height:0}[hidden],template{display:none}
a{background-color:transparent;-webkit-text-decoration-skip:objects}
a:active,a:hover{outline-width:0}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}
dfn{font-style:italic}mark{background:#ff0;color:#000}
small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}
sub{bottom:-0.25em}sup{top:-0.5em}figure{margin:1em 40px}
img{border-style:none}svg:not(:root){overflow:hidden}
code,kbd,pre,samp{font-family:monospace,monospace;font-size:1em}
hr{box-sizing:content-box;height:0;overflow:visible}
button,input,select,textarea{font:inherit;margin:0}optgroup{font-weight:bold}
button,input{overflow:visible}button,select{text-transform:none}
button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}
button::-moz-focus-inner, [type=button]::-moz-focus-inner, [type=reset]::-moz-focus-inner, [type=submit]::-moz-focus-inner{border-style:none;padding:0}
button:-moz-focusring, [type=button]:-moz-focusring, [type=reset]:-moz-focusring, [type=submit]:-moz-focusring{outline:1px dotted ButtonText}
fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:.35em .625em...