toddnestor/angular cart sample

## angular cart sample
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<div ng-app="app" ng-controller="myAppController">
    <h3>Items</h3>
    <ul>
        <li ng-repeat="item in possible_items">
            {{item.title}}: ${{item.price}}
            <input type="number" min="1" ng-init="qty = 1" ng-model="qty" />
            <button ng-click="addToCart( item, qty )">Add</button>
        </li>
    </ul>
    <hr>
    <h3>Cart</h3>
    <ul ng-if="cart_items.length > 0">
        <li ng-repeat="item in cart_items">
            <input type="number" ng-model="item.qty" /> {{item.item.title}} ${{item.item.price * item.qty}}
            <button ng-click="removeFromCart( item )">Remove</button>
        </li>
    </ul>
    <strong ng-if="cart_items.length == 0">You haven't added any items yet...</strong>
    <hr>
    <strong>Total: ${{calculateTotal()}}</strong>
</div>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.2/angular.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script type="text/javascript">
    angular.module('app', [])
            .controller('myAppController', ['$scope', myAppController]);

    function myAppController( $scope ) {
        $scope.cart_items = [];

        $scope.removeFromCart = function( item ) {
            $scope.cart_items = _.without( $scope.cart_items, item );
        }

        $scope.calculateTotal = function() {
            var total = 0;

            angular.forEach( $scope.cart_items, function( value ) {
                total += value.item.price * value.qty;
            } );

            return total;
        }

        $scope.addToCart = function( item, qty ) {
            var existing_item = _.findWhere( $scope.cart_items, {item: item } );

            if( existing_item )
                existing_item.qty += qty;
            else {
                $scope.cart_items.push({
                    item: item,
                    qty: qty
                });
            }
        }

        $scope.possible_items = [
            {
                title: 'item 1',
                description: 'this is a cool description',
                price: '21.00'
            },
            {
                title: 'item 2',
                description: 'this is a cool description',
                price: '27.00'
            },
            {
                title: 'item 3',
                description: 'this is a cool description',
                price: '95.00'
            }
        ];
    }
</script>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title></title>
	</head>
	<body>
	<div ng-app="app" ng-controller="myAppController">
	<h3>Items</h3>
	<ul>
	<li ng-repeat="item in possible_items">
	{{item.title}}: ${{item.price}}
	<input type="number" min="1" ng-init="qty = 1" ng-model="qty" />
	<button ng-click="addToCart( item, qty )">Add</button>
	</li>
	</ul>
	<hr>
	<h3>Cart</h3>
	<ul ng-if="cart_items.length > 0">
	<li ng-repeat="item in cart_items">
	<input type="number" ng-model="item.qty" /> {{item.item.title}} ${{item.item.price * item.qty}}
	<button ng-click="removeFromCart( item )">Remove</button>
	</li>
	</ul>
	<strong ng-if="cart_items.length == 0">You haven't added any items yet...</strong>
	<hr>
	<strong>Total: ${{calculateTotal()}}</strong>
	</div>
	<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.2/angular.min.js"></script>
	<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
	<script type="text/javascript">
	angular.module('app', [])
	.controller('myAppController', ['$scope', myAppController]);

	function myAppController( $scope ) {
	$scope.cart_items = [];

	$scope.removeFromCart = function( item ) {
	$scope.cart_items = _.without( $scope.cart_items, item );
	}

	$scope.calculateTotal = function() {
	var total = 0;

	angular.forEach( $scope.cart_items, function( value ) {
	total += value.item.price * value.qty;
	} );

	return total;
	}

	$scope.addToCart = function( item, qty ) {
	var existing_item = _.findWhere( $scope.cart_items, {item: item } );

	if( existing_item )
	existing_item.qty += qty;
	else {
	$scope.cart_items.push({
	item: item,
	qty: qty
	});
	}
	}

	$scope.possible_items = [
	{
	title: 'item 1',
	description: 'this is a cool description',
	price: '21.00'
	},
	{
	title: 'item 2',
	description: 'this is a cool description',
	price: '27.00'
	},
	{
	title: 'item 3',
	description: 'this is a cool description',
	price: '95.00'
	}
	];
	}
	</script>
	</body>
	</html>