third_party/angular/docs/examples/example-guide-concepts-21/invoice2.js

  angular.module('invoice2', ['finance2'])
    .controller('InvoiceController', ['currencyConverter', function(currencyConverter) {
      this.qty = 1;
      this.cost = 2;
      this.inCurr = 'EUR';
      this.currencies = currencyConverter.currencies;

      this.total = function total(outCurr) {
        return currencyConverter.convert(this.qty * this.cost, this.inCurr, outCurr);
      };
      this.pay = function pay() {
        window.alert("Thanks!");
      };
    }]);