Add auth module.

src/app/auth/auth.component.ts

@@ -0,0 +1,51 @@
+import { Component, OnInit } from '@angular/core';
+import {FormBuilder, FormGroup, Validators} from '@angular/forms';
+import {CustomValidator} from '../_helpers';
+
+@Component({
+  selector: 'app-auth',
+  templateUrl: './auth.component.html',
+  styleUrls: ['./auth.component.scss']
+})
+export class AuthComponent implements OnInit {
+  registerForm: FormGroup;
+  submitted: boolean = false;
+  loading: boolean = false;
+  error: any;
+
+  constructor(
+    private formBuilder: FormBuilder,
+  ) { }
+
+  ngOnInit(): void {
+    this.registerForm = this.formBuilder.group({
+      email: ['', Validators.required],
+      password: ['', [
+        // 1. Password Field is Required
+        Validators.required,
+        // 2. check whether the entered password has a number
+        CustomValidator.patternValidator(/\d/, { hasNumber: true }),
+        // 3. check whether the entered password has upper case letter
+        CustomValidator.patternValidator(/[A-Z]/, { hasCapitalCase: true }),
+        // 4. check whether the entered password has a lower-case letter
+        CustomValidator.patternValidator(/[a-z]/, { hasSmallCase: true }),
+        // 6. Has a minimum length of 8 characters
+        Validators.minLength(8)]],
+      confirmPassword: ['', Validators.required],
+      terms: ['', Validators.required]
+    }, {
+      // validator for the form group
+      validator: CustomValidator.passwordMatchValidator
+    });
+  }
+
+  get form(): any { return this.registerForm.controls; }
+
+  onSubmit(): void {
+    this.submitted = true;
+
+    if (this.registerForm.invalid) { return; }
+
+    this.loading = true;
+  }
+}