form.js

// Code goes here

var app = angular.module('myApp', []);

app.controller('SignupForm', ['$scope', function($scope){
  $scope.submitform = function(){
    alert($scope.signup_form.$valid);
  }
  
  $scope.checkPassword = function () {
    $scope.signup_form.password_confirmation.$error.match = $scope.user.password !== $scope.user.password_confirmation;
  };
}]);