diff --git a/javascript-practice/src/js/app.js b/javascript-practice/src/js/app.js
new file mode 100644
index 0000000..6c68c70
--- /dev/null
+++ b/javascript-practice/src/js/app.js
@@ -0,0 +1,15 @@
+import Controller from './controllers/controller';
+import Service from './services/service';
+import View from './views/view';
+import 'regenerator-runtime/runtime';
+import 'core-js/stable';
+
+export default class App {
+  constructor() {
+    this.controller = new Controller(new Service(), new View());
+  }
+
+  start() {
+    this.controller.registerController.init();
+  }
+}
diff --git a/javascript-practice/src/js/controller.js b/javascript-practice/src/js/controller.js
deleted file mode 100644
index e69de29..0000000
diff --git a/javascript-practice/src/js/controllers/controller.js b/javascript-practice/src/js/controllers/controller.js
new file mode 100644
index 0000000..e360b3c
--- /dev/null
+++ b/javascript-practice/src/js/controllers/controller.js
@@ -0,0 +1,7 @@
+import RegisterController from './registerController';
+
+export default class Controller {
+  constructor(service, view) {
+    this.registerController = new RegisterController(service, view);
+  }
+}
diff --git a/javascript-practice/src/js/controllers/registerController.js b/javascript-practice/src/js/controllers/registerController.js
new file mode 100644
index 0000000..7fa6f8c
--- /dev/null
+++ b/javascript-practice/src/js/controllers/registerController.js
@@ -0,0 +1,46 @@
+export default class RegisterController {
+  constructor(service, view) {
+    this.view = view;
+    this.service = service;
+  }
+
+  async controlRegister() {
+    try {
+      // Load spinner
+      this.view.registerView.toogleLoaderSpinner();
+
+      // Get data from form
+      const user = this.view.registerView.getDataFromForm();
+
+      // Save user
+      if (user) {
+        // Check user exist
+        const userExist = await this.service.userService.checkExistUserByEmail(
+          user.email,
+        );
+        if (userExist) {
+          throw Error('User is exists! Please try another email!');
+        } else {
+          await this.service.userService.saveUser(user);
+          // Show popup success
+          this.view.registerView.initRegisterSuccessPopup();
+          this.view.registerView.tooglePopupForm();
+        }
+      }
+    } catch (error) {
+      // Show popup error
+      this.view.registerView.initErrorPopup(error);
+      this.view.registerView.tooglePopupForm();
+    }
+
+    // Close spinner
+    this.view.registerView.toogleLoaderSpinner();
+  }
+
+  init() {
+    if (this.view.registerView.registerForm !== null) {
+      this.view.registerView.addHandlerForm(this.controlRegister.bind(this));
+      this.view.registerView.addHandlerInputFormChange();
+    }
+  }
+}
diff --git a/javascript-practice/src/js/main.js b/javascript-practice/src/js/main.js
new file mode 100644
index 0000000..626a1f8
--- /dev/null
+++ b/javascript-practice/src/js/main.js
@@ -0,0 +1,7 @@
+import App from './app';
+
+// Sure that scripts called after DOM loaded
+document.addEventListener('DOMContentLoaded', () => {
+  const myApp = new App();
+  myApp.start();
+});
diff --git a/javascript-practice/src/js/views/commonLoginRegisterView.js b/javascript-practice/src/js/views/commonLoginRegisterView.js
new file mode 100644
index 0000000..46d1ad8
--- /dev/null
+++ b/javascript-practice/src/js/views/commonLoginRegisterView.js
@@ -0,0 +1,117 @@
+import CommonView from './commonView';
+import * as CONSTANT from '../constants/constant';
+import { validatePassword } from '../helpers/helpers';
+
+export default class CommonLoginRegisterView extends CommonView {
+  constructor() {
+    super();
+
+    this.parentElement = document.querySelector('.form');
+    this.messageDefault = CONSTANT.MESSAGE.ERROR_MESSAGE_DEFAULT;
+    this.inputField = document.querySelectorAll('.form__input');
+  }
+
+  /**
+   * Validate user input data
+   * @param {Object} account The account object with email, password, passwordConfirm field
+   * @returns {boolean} Return true if validate success and return false if validate not success
+   */
+  validateForm(account) {
+    if (account.password === account.passwordConfirm) {
+      if (validatePassword(account.passwordConfirm)) {
+        return true;
+      }
+      this.showError(CONSTANT.MESSAGE.PASSWORD_NOT_STRONG);
+      return false;
+    }
+    this.showError(CONSTANT.MESSAGE.PASSWORD_NOT_MATCH);
+    return false;
+  }
+
+  /**
+   * Add event listener for form input
+   * @param {Function} handler The function need to be set event
+   */
+  addHandlerForm(handler) {
+    this.parentElement.addEventListener('submit', (e) => {
+      e.preventDefault();
+      this.clearErrorMessage();
+      handler();
+    });
+  }
+
+  /**
+   * Show error style input password
+   */
+  changeToStyleErrorInputPassword() {
+    // Index = 1 because it should skip email input field
+    for (let index = 1; index < this.inputField.length; index += 1) {
+      this.inputField[index].style.background = '#ffc3c3';
+      this.inputField[index].style.borderColor = '#ce1414';
+    }
+  }
+
+  /**
+   * Clear error style input password
+   */
+  clearStyleErrorInputPassword() {
+    for (let index = 1; index < this.inputField.length; index += 1) {
+      this.inputField[index].style.background = '#f5f5f5';
+      this.inputField[index].style.borderColor = '#f5f5f5';
+    }
+  }
+
+  /**
+   * Reassign again to check error message element haved on page or not
+   */
+  reassignVariableErrorMessage() {
+    this.errorMessage = document.querySelector('.form__error-message');
+  }
+
+  /**
+   * Clear error message at form
+   */
+  clearErrorMessage() {
+    this.reassignVariableErrorMessage();
+
+    // If have error message on page, remove it
+    if (this.errorMessage) {
+      this.errorMessage.remove();
+      this.clearStyleErrorInputPassword();
+    }
+  }
+
+  /**
+   * Add event listener for input field at form
+   */
+  addHandlerInputFormChange() {
+    this.parentElement.addEventListener('input', () => {
+      this.clearErrorMessage();
+    });
+  }
+
+  /**
+   * Show error message with error style input password.
+   * @param {string} message The error message you want show in form.
+   */
+  showError(message) {
+    this.renderError(message);
+    this.changeToStyleErrorInputPassword();
+  }
+
+  /**
+   * Show error message in form
+   * @param {*} message The message will show in form
+   */
+  renderError(message) {
+    const markup = `
+      <p class="form__error-message">${
+        !message ? this.messageDefault : message
+      }</p>
+    `;
+
+    document
+      .querySelector('.form__title')
+      .insertAdjacentHTML('afterend', markup);
+  }
+}
diff --git a/javascript-practice/src/js/views/registerView.js b/javascript-practice/src/js/views/registerView.js
index aa0576e..4a311a0 100644
--- a/javascript-practice/src/js/views/registerView.js
+++ b/javascript-practice/src/js/views/registerView.js
@@ -1,21 +1,17 @@
-import { validatePassword } from '../helpers/helpers';
-import * as CONSTANT from '../constants/constant';
-import CommonView from './commonView';
+import { TYPE_POPUP } from '../constants/constant';
+import CommonLoginRegisterView from './commonLoginRegisterView';
 import User from '../models/userModel';
 
-export default class RegisterView extends CommonView {
+export default class RegisterView extends CommonLoginRegisterView {
   constructor() {
     super();
 
-    this.parentElement = document.querySelector('.form');
-    this.inputField = document.querySelectorAll('.form__input');
-
-    this.messageDefault = CONSTANT.MESSAGE.ERROR_MESSAGE_DEFAULT;
+    this.registerForm = document.getElementById('registerForm');
   }
 
   /**
    * Get data from user input
-   * @returns {Object || null} Return user object or null
+   * @returns {Object || null} Return object or null
    */
   getDataFromForm() {
     const { registerForm } = document.forms;
@@ -33,99 +29,11 @@ export default class RegisterView extends CommonView {
     return null;
   }
 
-  /**
-   * Validate user input data
-   * @param {Object} account The account object with email, password, passwordConfirm field
-   * @returns {boolean} Return true if validate success and return false if validate not success
-   */
-  validateForm(account) {
-    if (account.password === account.passwordConfirm) {
-      if (validatePassword(account.passwordConfirm)) {
-        return true;
-      }
-      this.showError(CONSTANT.MESSAGE.PASSWORD_NOT_STRONG);
-      return false;
-    }
-    this.showError(CONSTANT.MESSAGE.PASSWORD_NOT_MATCH);
-    return false;
-  }
-
-  /**
-   * Add event listener for form input
-   * @param {Function} handler The function need to be set event
-   */
-  addHandlerForm(handler) {
-    this.parentElement.addEventListener('submit', (e) => {
-      e.preventDefault();
-      this.clearErrorMessage();
-      handler();
-    });
-  }
-
-  /**
-   * Show error style input password
-   */
-  changeToStyleErrorInputPassword() {
-    // Index = 1 because it should skip email input field
-    for (let index = 1; index < this.inputField.length; index += 1) {
-      this.inputField[index].style.background = '#ffc3c3';
-      this.inputField[index].style.borderColor = '#ce1414';
-    }
-  }
-
-  /**
-   * Clear error style input password
-   */
-  clearStyleErrorInputPassword() {
-    for (let index = 1; index < this.inputField.length; index += 1) {
-      this.inputField[index].style.background = '#f5f5f5';
-      this.inputField[index].style.borderColor = '#f5f5f5';
-    }
-  }
-
-  /**
-   * Reassign again to check error message element haved on page or not
-   */
-  reassignVariableErrorMessage() {
-    this.errorMessage = document.querySelector('.form__error-message');
-  }
-
-  /**
-   * Clear error message at form
-   */
-  clearErrorMessage() {
-    this.reassignVariableErrorMessage();
-
-    // If have error message on page, remove it
-    if (this.errorMessage) {
-      this.errorMessage.remove();
-      this.clearStyleErrorInputPassword();
-    }
-  }
-
-  /**
-   * Add event listener for input field at form
-   */
-  addHandlerInputFormChange() {
-    this.parentElement.addEventListener('input', () => {
-      this.clearErrorMessage();
-    });
-  }
-
-  /**
-   * Show error message with error style input password.
-   * @param {string} message The error message you want show in form.
-   */
-  showError(message) {
-    this.renderError(message);
-    this.changeToStyleErrorInputPassword();
-  }
-
   /**
    * Implement register success popup in site
    */
   initRegisterSuccessPopup() {
-    const typePopup = CONSTANT.TYPE_POPUP.success;
+    const typePopup = TYPE_POPUP.success;
     const title = 'Register Commpleted';
     const content = 'Please login to continue!';
     const btnContent = 'OK';
@@ -138,26 +46,10 @@ export default class RegisterView extends CommonView {
    * @param {string} content The content will show in error popup
    */
   initErrorPopup(content) {
-    const typePopup = CONSTANT.TYPE_POPUP.error;
+    const typePopup = TYPE_POPUP.error;
     const title = 'Error';
     const btnContent = 'Got it!';
 
     this.initPopupContent(typePopup, title, content, btnContent);
   }
-
-  /**
-   * Show error message in form
-   * @param {*} message The message will show in form
-   */
-  renderError(message) {
-    const markup = `
-      <p class="form__error-message">${
-        !message ? this.messageDefault : message
-      }</p>
-    `;
-
-    document
-      .querySelector('.form__title')
-      .insertAdjacentHTML('afterend', markup);
-  }
 }
diff --git a/javascript-practice/src/pages/register.html b/javascript-practice/src/pages/register.html
index ec6c9a5..7a729f1 100644
--- a/javascript-practice/src/pages/register.html
+++ b/javascript-practice/src/pages/register.html
@@ -55,6 +55,6 @@
         <!-- End form -->
       </div>
     </div>
-    <script type="module" src="../js/controller.js"></script>
+    <script type="module" src="../js/main.js"></script>
   </body>
 </html>