Defining routes in Vue - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Vue Router function.

Vue

import { [1] } from 'vue-router';

Drag options to blanks, or click blank then click option'

AdefineRoute

BuseRouter

CcreateRouter

DrouterCreate

Attempts:

3 left

💡 Hint

Common Mistakes

Using useRouter which is for accessing the router instance, not creating it.

Trying to import a function that doesn't exist like defineRoute.

The createRouter function is used to define routes in Vue Router.

2fill in blank

medium

Complete the code to define a route path for the Home component.

Vue

const routes = [{ path: '/', component: [1] }];

Drag options to blanks, or click blank then click option'

AHome

BHomePage

Chome

DMain

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase home which is not a valid component name.

Using unrelated names like Main.

The component name Home matches the imported component for the home page.

3fill in blank

hard

Fix the error in the router creation by completing the missing property.

Vue

const router = createRouter({ history: createWebHistory(), [1] });

Drag options to blanks, or click blank then click option'

Apath

Broutes

Ccomponent

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using path or component which belong inside route objects, not router config.

Omitting the routes property entirely.

The routes property is required to tell the router which routes to use.

4fill in blank

hard

Fill both blanks to define a route with a name and path.

Vue

const routes = [{ name: '[1]', path: '[2]', component: About }];

Drag options to blanks, or click blank then click option'

Aabout

B/about

C/home

Dhome

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the name and path values.

Using /home or home for the About route.

The route name is about and the path is /about for the About page.

5fill in blank

hard

Fill both blanks to create a router with history and routes.

Vue

const router = createRouter({ history: [1](), [2] });

Drag options to blanks, or click blank then click option'

AcreateWebHashHistory

Broutes

Cstrict

DcreateWebHistory

Attempts:

3 left

💡 Hint

Common Mistakes

Using createWebHashHistory when the question expects createWebHistory.

Omitting the routes property or confusing it with others.

The router uses createWebHistory() for history and routes for route list.

Practice

1. What is the main purpose of defining routes in a Vue application?

easy

A. To style components with CSS

B. To connect URLs to components so different pages can be shown

C. To manage state between components

D. To handle user input events

Solution

1. Step 1: Understand the role of routes

   Routes link specific URLs to Vue components, allowing navigation between pages.

2. Step 2: Identify the correct purpose

   Connecting URLs to components matches the description of routing.

3. Final Answer:

   To connect URLs to components so different pages can be shown -> Option B

4. Quick Check:

   Routes = URL to component mapping [OK]

Hint: Routes map URLs to components for page navigation [OK]

Common Mistakes:

• Confusing routes with styling or CSS
• Thinking routes manage state or events
• Mixing routes with user input handling

2. Which of the following is the correct way to define a route for path '/home' using a component named HomeView?

easy

A. { path: '/home', component: HomeView }

B. { route: '/home', view: HomeView }

C. { url: '/home', component: HomeView }

D. { path: '/home', view: HomeView }

Solution

1. Step 1: Recall route object keys

   Routes use keys 'path' for URL and 'component' for the Vue component.

2. Step 2: Match correct syntax

   { path: '/home', component: HomeView } uses correct keys: path and component with proper values.

3. Final Answer:

   { path: '/home', component: HomeView } -> Option A

4. Quick Check:

   Route keys = path + component [OK]

Hint: Use 'path' and 'component' keys to define routes [OK]

Common Mistakes:

• Using 'route' or 'url' instead of 'path'
• Using 'view' instead of 'component'
• Mixing keys or misspelling them

3. Given this route setup:

const routes = [
  { path: '/', component: HomeView },
  { path: '/about', component: AboutView }
];
const router = createRouter({
  history: createWebHistory(),
  routes
});

What component will show when the URL is '/about'?

medium

A. AboutView

B. HomeView

C. createRouter

D. createWebHistory

Solution

1. Step 1: Check the route matching '/about'

   The route with path '/about' uses component AboutView.

2. Step 2: Understand router behavior

   When URL is '/about', Vue Router renders AboutView component.

3. Final Answer:

   AboutView -> Option A

4. Quick Check:

   URL '/about' shows AboutView [OK]

Hint: URL matches route path to show its component [OK]

Common Mistakes:

• Confusing router functions with components
• Choosing HomeView for '/about' URL
• Not linking URL to correct route

4. Identify the error in this route definition:

const routes = [
  { path: '/contact', component ContactView }
];

medium

A. Component name should be a string

B. Path should start with '#' instead of '/'

C. Missing colon ':' after 'component'

D. Routes array should be inside createRouter

Solution

1. Step 1: Check object syntax in route

   Each key-value pair must have a colon ':' separating them.

2. Step 2: Spot missing colon after 'component'

   In the route, 'component ContactView' misses ':'; it should be 'component: ContactView'.

3. Final Answer:

   Missing colon ':' after 'component' -> Option C

4. Quick Check:

   Object syntax needs ':' [OK]

Hint: Check colons between keys and values in objects [OK]

Common Mistakes:

• Forgetting colon ':' in object properties
• Using '#' instead of '/' in paths
• Putting component names as strings incorrectly

5. You want to create a Vue router with two routes: '/' showing HomeView and '/profile/:id' showing ProfileView. Which code correctly defines these routes and sets up the router?

hard

A. const routes = [
{ path: '/', component: HomeView },
{ path: '/profile/:id', component: ProfileView }
];
const router = createRouter({
history: createMemoryHistory(),
routes
});

B. const routes = [
{ path: '/', component: HomeView },
{ path: '/profile/id', component: ProfileView }
];
const router = createRouter({
history: createWebHistory(),
routes
});

C. const routes = [
{ path: '/', component: HomeView },
{ path: '/profile/:id', component: 'ProfileView' }
];
const router = createRouter({
history: createWebHistory(),
routes
});

D. const routes = [
{ path: '/', component: HomeView },
{ path: '/profile/:id', component: ProfileView }
];
const router = createRouter({
history: createWebHistory(),
routes
});

Solution

1. Step 1: Define routes with dynamic segment

   Use '/profile/:id' to capture dynamic id parameter correctly.

2. Step 2: Use correct component references and history mode

   Components must be variables (not strings). Use createWebHistory() for normal web routing.

3. Step 3: Check each option

   const routes = [ { path: '/', component: HomeView }, { path: '/profile/:id', component: ProfileView } ]; const router = createRouter({ history: createWebHistory(), routes }); matches all requirements: dynamic path, component variables, and web history.

4. Final Answer:

   Correct route array with dynamic segment and createWebHistory() -> Option D

5. Quick Check:

   Dynamic routes use ':param' and createWebHistory() [OK]

Hint: Use ':param' for dynamic routes and createWebHistory() for browser routing [OK]

Common Mistakes:

• Using literal 'id' instead of ':id' for dynamic segments
• Passing component names as strings instead of variables
• Using createMemoryHistory() instead of createWebHistory() for web apps