Link component for client navigation in NextJS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Link component from Next.js.

NextJS

import [1] from 'next/link';

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

ARouter

BLink

CNavLink

DNavigation

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Router' instead of 'Link' for navigation.

Trying to import from 'next/router' instead of 'next/link'.

The Link component is imported from 'next/link' to enable client-side navigation in Next.js.

2fill in blank

medium

Complete the code to create a client navigation link to the '/about' page.

NextJS

<Link href=[1]><a>About Us</a></Link>

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

A'/contact'

B'/home'

C'/about'

D'about'

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the leading slash in the path.

Using a wrong path like '/contact' instead of '/about'.

The href prop should be the path string '/about' to navigate to the About page.

3fill in blank

hard

Fix the error in the Link usage by completing the blank.

NextJS

<Link href="/blog">[1]Read Blog[1]</Link>

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

A<a>

B<button>

C<div>

D<span>

Attempts:

3 left

💡 Hint

Common Mistakes

Using <button> or <div> inside Link.

Not wrapping the text inside any tag.

Next.js requires an <a> tag inside Link for proper client navigation and accessibility.

4fill in blank

hard

Fill both blanks to create a Link that navigates to '/profile' with accessible text.

NextJS

<Link href=[1]><a aria-label=[2]>Go to Profile</a></Link>

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

A'/profile'

B"Profile page"

C"Profile section"

D'/dashboard'

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect href paths like '/dashboard'.

Not providing an aria-label or using unclear text.

The href should be '/profile' and the aria-label should describe the link purpose clearly for screen readers.

5fill in blank

hard

Fill all three blanks to create a Link with a dynamic href and accessible label.

NextJS

const userId = '123';
<Link href=[1]><a aria-label=[2]>[3]</a></Link>

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

A`/user/${userId}`

B"User profile"

C"View Profile"

D"/user/123"

Attempts:

3 left

💡 Hint

Common Mistakes

Using plain string '/user/123' instead of dynamic template string.

Missing aria-label or using non-descriptive text.

Use a template string for dynamic href, a clear aria-label, and descriptive link text for accessibility.

Practice

1. What is the main purpose of the Link component in Next.js?

easy

A. To style links with CSS automatically

B. To fetch data from an API

C. To navigate between pages without reloading the whole page

D. To create server-side rendered pages

Solution

1. Step 1: Understand the role of Link in Next.js

   The Link component is designed to enable client-side navigation, which means moving between pages without a full page reload.

2. Step 2: Compare options with Link's purpose

   Options A, C, and D describe unrelated features: styling, data fetching, and server rendering, which are not the Link component's main job.

3. Final Answer:

   To navigate between pages without reloading the whole page -> Option C

4. Quick Check:

   Link enables client navigation = B [OK]

Hint: Link is for fast page moves without reloads [OK]

Common Mistakes:

• Thinking Link styles links automatically
• Confusing Link with data fetching tools
• Assuming Link creates server-rendered pages

2. Which of the following is the correct syntax to create a client navigation link to '/about' page using Next.js Link component?

easy

A. About

B. About

C. About

D. About

Solution

1. Step 1: Recall Next.js Link syntax

   The Link component requires an href prop for the destination and wraps an <a> tag for accessibility and styling.

2. Step 2: Evaluate each option

   <Link href='/about'><a>About</a></Link> uses href and wraps <a> correctly. <Link to='/about'>About</Link> uses to which is React Router syntax, not Next.js. <a href='/about'>About</a> is a plain anchor tag without Link, so no client navigation. <Link url='/about'><a>About</a></Link> uses url which is invalid.

3. Final Answer:

   <Link href='/about'><a>About</a></Link> -> Option D

4. Quick Check:

   Use href and wrap <a> = A [OK]

Hint: Link uses href, not to or url, and wraps an <a> tag [OK]

Common Mistakes:

• Using 'to' instead of 'href' in Link
• Not wrapping content inside <a> tag
• Using plain <a> without Link for navigation

3. Given this code snippet, what will happen when the user clicks the link?

import Link from 'next/link';

export default function Home() {
  return (
    <Link href='/contact'><a>Contact Us</a></Link>
  );
}

medium

A. Nothing happens because the Link is missing a required prop

B. The page navigates to '/contact' without a full page reload

C. The page reloads completely and navigates to '/contact'

D. An error is thrown because <a> cannot be inside Link

Solution

1. Step 1: Understand Link behavior on click

   The Link component enables client-side navigation, so clicking the link changes the URL and page content without a full reload.

2. Step 2: Check code correctness

   The code uses href='/contact' and wraps the text inside <a>, which is the correct pattern. No errors or missing props.

3. Final Answer:

   The page navigates to '/contact' without a full page reload -> Option B

4. Quick Check:

   Link click triggers client navigation = C [OK]

Hint: Link with href and <a> navigates client-side [OK]

Common Mistakes:

• Thinking Link causes full page reload
• Believing <a> inside Link causes error
• Assuming missing props cause no navigation

4. Identify the error in this Next.js Link usage:

import Link from 'next/link';

export default function Nav() {
  return (
    <Link href='/services'>Services</Link>
  );
}

medium

A. Missing <a> tag inside Link for proper accessibility

B. Incorrect import statement for Link component

C. href should be a full URL, not a relative path

D. Link component cannot be used inside a function

Solution

1. Step 1: Check Link usage requirements

   Next.js Link requires wrapping the clickable content inside an <a> tag for accessibility and styling.

2. Step 2: Analyze the code snippet

   The code places the text 'Services' directly inside Link without an <a> tag, which is incorrect and can cause accessibility issues.

3. Final Answer:

   Missing <a> tag inside Link for proper accessibility -> Option A

4. Quick Check:

   Link needs <a> inside = D [OK]

Hint: Always wrap Link content in <a> tag [OK]

Common Mistakes:

• Omitting the <a> tag inside Link
• Using full URLs unnecessarily in href
• Thinking Link can't be used in functions

5. You want to create a navigation menu with three links: Home ('/'), About ('/about'), and Contact ('/contact'). Which code correctly uses Next.js Link components to ensure fast client navigation and accessibility?

hard

A.
Home
About
Contact

B.
Home
About
Contact

C.
Home
About
Contact

D.
Home
About
Contact

Solution

1. Step 1: Review correct Link usage for multiple links

   Each Link must have an href prop and wrap an <a> tag for accessibility and client navigation.

2. Step 2: Evaluate each option

   Home About Contact
   correctly uses href and wraps text in <a>.
   Home About Contact
   uses plain anchors without Link, causing full reloads.
   Home About Contact
   uses to which is invalid in Next.js.
   Home About Contact
   uses <span> instead of <a>, breaking accessibility and styling.

3. Final Answer:

   Option A code with Link and <a> tags for all links -> Option A

4. Quick Check:

   Link with href and for all links = A [OK]

Hint: Use href and <a> inside Link for all menu items [OK]

Common Mistakes:

• Using plain <a> without Link causing reloads
• Using 'to' instead of 'href' in Link
• Replacing <a> with <span> inside Link