diff --git a/cypress/integration/register.spec.js b/cypress/integration/register.spec.js
index 63e301e..fb4d701 100644
--- a/cypress/integration/register.spec.js
+++ b/cypress/integration/register.spec.js
@@ -2,40 +2,44 @@ import registration from '../selectors/register.sel'
 import header from '../selectors/header.sel'
 
 describe('Register', () => {
-    // actually we should not use let here, check register_better.spec for a better solution
     // https://docs.cypress.io/guides/core-concepts/variables-and-aliases.html#Aliases
-    let username
-    let email
+    // using let is not neccessary and we use aliases in beforeEach instead
+    // let username
+    // let email
 
     beforeEach(() => {
         // we need random username and email each test
-        username = `cy${Math.random().toString().slice(2, 8)}`
-        email = `${username}@mailinator.com`
+        const random = `cy${Math.random().toString().slice(2, 8)}`
+        // use alias instead of let
+        cy.wrap(random).as('username')
+        cy.wrap(`${random}@mailinator.com`).as('email')
         cy.visit('/register')
     })
 
-    it('can register a new account', () => {
+    // https://docs.cypress.io/guides/core-concepts/variables-and-aliases.html#Avoiding-the-use-of-this
+    // if we want to access alias in test, we need to change arrow function => to function ()
+    it('can register a new account', function () {
         // added delay as sometimes it can make tests flaky if typing too fast (default is 10)
-        cy.get(registration.usernameField).type(username, { delay: 50 })
-        cy.get(registration.emailField).type(email)
+        cy.get(registration.usernameField).type(this.username, { delay: 50 })
+        cy.get(registration.emailField).type(this.email)
         cy.get(registration.passwordField).type('Cypress12')
         cy.get(registration.signUpButton).click()
         cy.get(header.settingsLink).should('be.visible')
     })
 
-    it('check registration request body and response', () => {
+    it('check registration request body and response', function () {
         cy.intercept('/api/users').as('loginRequest')
-        cy.get(registration.usernameField).type(username)
-        cy.get(registration.emailField).type(email)
+        cy.get(registration.usernameField).type(this.username)
+        cy.get(registration.emailField).type(this.email)
         cy.get(registration.passwordField).type('Cypress12{enter}')
 
         cy.wait('@loginRequest').then((xhr) => {
             // check request body
-            expect(xhr.request.body.user.email).to.eq(email)
+            expect(xhr.request.body.user.email).to.eq(this.email)
             expect(xhr.request.body.user.password).to.eq('Cypress12')
-            expect(xhr.request.body.user.username).to.eq(username)
+            expect(xhr.request.body.user.username).to.eq(this.username)
             // check response body
-            expect(xhr.response.body.user.email).to.eq(email)
+            expect(xhr.response.body.user.email).to.eq(this.email)
             expect(xhr.response.body.user.id).not.to.eq(null)
             expect(xhr.response.body.user.token).not.to.eq(null)
         })
diff --git a/cypress/integration/register_better.spec.js b/cypress/integration/register_better.spec.js
deleted file mode 100644
index 19216ee..0000000
--- a/cypress/integration/register_better.spec.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import registration from '../selectors/register.sel'
-import header from '../selectors/header.sel'
-
-describe('Register - duplicate of register.spec', () => {
-    beforeEach(() => {
-        // we need random username and email each test
-        const random = `cy${Math.random().toString().slice(2, 8)}`
-        // use alias instead of let
-        cy.wrap(random).as('username')
-        cy.wrap(`${random}@mailinator.com`).as('email')
-        cy.visit('/register')
-    })
-
-    // this is not an arrow function anymore =>
-    // https://docs.cypress.io/guides/core-concepts/variables-and-aliases.html#Avoiding-the-use-of-this
-    it('can register a new account', function () {
-        // added delay as sometimes it can make tests flaky if typing too fast (default is 10)
-        cy.get(registration.usernameField).type(this.username, { delay: 50 })
-        cy.get(registration.emailField).type(this.email)
-        cy.get(registration.passwordField).type('Cypress12')
-        cy.get(registration.signUpButton).click()
-        cy.get(header.settingsLink).should('be.visible')
-    })
-
-    it('check registration request body and response', function () {
-        cy.intercept('/api/users').as('loginRequest')
-        cy.get(registration.usernameField).type(this.username)
-        cy.get(registration.emailField).type(this.email)
-        cy.get(registration.passwordField).type('Cypress12{enter}')
-
-        cy.wait('@loginRequest').then((xhr) => {
-            // check request body
-            expect(xhr.request.body.user.email).to.eq(this.email)
-            expect(xhr.request.body.user.password).to.eq('Cypress12')
-            expect(xhr.request.body.user.username).to.eq(this.username)
-            // check response body
-            expect(xhr.response.body.user.email).to.eq(this.email)
-            expect(xhr.response.body.user.id).not.to.eq(null)
-            expect(xhr.response.body.user.token).not.to.eq(null)
-        })
-        cy.get(header.settingsLink).should('be.visible')
-    })
-})