Form Validation throgh Angular js

 i am searching on internet then found many missing thing on validation on form when you are beginner and learning in angular js
I am follow few step of validation of angular js then validate my form. validation script

   var d = angular.module('myapp', []);
    d.controller('HomeController', function($scope) {
      $scope.loginForm = {
        UserName: '',
        password: '',
        email: '',
        Gender: [{
          value: 0,
          text: '--select--'
        }, {
          value: 1,
          text: 'Male'
        }, {
          value: 2,
          text: 'female'
        }]
      }
      $scope.form = $scope.loginForm.Gender[0].value

      $scope.validate = function(model) {

        $scope.form1.$submitted = true;
        $scope.selectedGender = document.getElementById('ddlGender').value == '0'
        if ($scope.selectedGender) {
          return false;
        }
        if ($scope.form1.$valid) alert(1);

      }
      $scope.onSelectChange = function() {
        $scope.selectedGender = document.getElementById('ddlGender').value == '0'
      }

    })

Name	This is required
Password	This is required
Gender	this is required