learning-angular/00-1-concepts.html at master · JsNuts/learning-angular · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>00-concepts</title>
	<!--This script contains all the code which makes AngularJS Run on our website-->
	<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.0-beta.11/angular.min.js"></script>
	<script>
	angular.module('invoice-cntrl-demo', [])
		//.controller is a function that creates a controller using a function we supply.
		.controller('InvoiceController', function(){
			//all standard JS stuff when creating an object
			this.qty=1;
			this.cost=2;
			this.selectedCurrency='USD';
			this.currencies = ['USD', 'EUR', 'CNY'];
			this.usdExchangeRates = {
				USD:1, EUR:0.74, CNY:6.09
			};
			this.total = function total(outputCurrency){
				return this.convert(this.qty*this.cost, this.selectedCurrency, outputCurrency);
			};
			this.convert = function convert(amount, from, to){
				return amount * this.usdExchangeRates[to] / this.usdExchangeRates[from];
			};
			this.pay = function pay(){
				window.alert("thanks!");
			};
		});
	</script>
</head>
<body>
<h1>Controllers</h1><br />
<div ng-app="invoice-cntrl-demo" ng-controller="InvoiceController as invoice">
<!--Says that the 'InvoiceController' is responsible for the element and we store it into 'invoice' on the scope-->
<b>Invoice:</b>
<div>
	Quantitiy: <input type="number" ng-model="invoice.qty" required>
</div>
<div>
	Costs: <input type="number" ng-model="invoice.cost" required>
	<select ng-model="invoice.selectedCurrency">
		<option ng-repeat="c in invoice.currencies">{{c}}</option>
		<!--ng-repeat iterates through all elements in the currencies attribute of the invoice object-->
	</select>
</div>
<div>
	<b>Total:</b>
	<span ng-repeat="c in invoice.currencies">
		{{invoice.total(c) | currency:c }}
	</span>
	<button class="btn" ng-click="invoice.pay()">Pay</button>
	<!--Refers to the pay() function within the invoice object-->
</div>
</div>
</body>
</html>