Route groups in Svelte - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a route group folder named __api__ in SvelteKit.

Svelte

src/routes/[1]/users/+page.svelte

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

A(api)

B[api]

C<api>

D{api}

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets or curly braces instead of parentheses.

Naming the folder without any special characters.

In SvelteKit, route groups are created by wrapping the folder name in parentheses, like (api). This groups routes without affecting the URL path.

2fill in blank

medium

Complete the code to import a component from a route group folder named (admin).

Svelte

import AdminPanel from '$routes/[1]/dashboard/+page.svelte';

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

A(admin)

Badmin

C[admin]

D{admin}

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the parentheses in the import path.

Using square brackets or curly braces instead of parentheses.

When importing from a route group folder, include the parentheses in the path to match the folder name exactly.

3fill in blank

hard

Fix the error in the route group folder name to correctly group routes without changing the URL.

Svelte

src/routes/[1]/profile/+page.svelte

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

Aprofile-group

B[profile-group]

C(profile-group)

D{profile-group}

Attempts:

3 left

💡 Hint

Common Mistakes

Using dashes without parentheses which changes the URL.

Using square brackets or curly braces instead of parentheses.

Route groups require parentheses around the folder name to group routes without affecting the URL.

4fill in blank

hard

Fill both blanks to create a route group folder and a nested route inside it.

Svelte

src/routes/[1]/[2]/+page.svelte

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

A(dashboard)

Bsettings

Cprofile

D[settings]

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets for the nested route folder.

Not wrapping the group folder in parentheses.

The folder (dashboard) is a route group, and settings is a nested route inside it.

5fill in blank

hard

Fill all three blanks to create a route group, a nested folder, and a page component inside it.

Svelte

src/routes/[1]/[2]/[3]/+page.svelte

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

A(user)

Bprofile

Cedit

D[edit]

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets for the last folder.

Not wrapping the group folder in parentheses.

The route group (user) contains a nested folder profile, which itself contains the edit page.

Practice

1. What is the main purpose of using route groups in a SvelteKit project?

easy

A. To change the URL path of routes automatically

B. To add styles to routes

C. To organize routes without changing the URL structure

D. To create API endpoints

Solution

1. Step 1: Understand route groups concept

   Route groups in SvelteKit are folders with parentheses that help organize routes.

2. Step 2: Identify effect on URL

   Route groups do not affect the URL path; they only organize files internally.

3. Final Answer:

   To organize routes without changing the URL structure -> Option C

4. Quick Check:

   Route groups = organize routes, no URL change [OK]

Hint: Remember: parentheses folders group routes but keep URLs same [OK]

Common Mistakes:

• Thinking route groups change URLs
• Confusing route groups with styling
• Assuming route groups create API endpoints

2. Which folder name correctly creates a route group in SvelteKit?

easy

A. (admin)

B. user_profile

C. blog(posts)

D. [settings]

Solution

1. Step 1: Identify route group syntax

   Route groups use parentheses around folder names, like (group).

2. Step 2: Check options

   Only (admin) uses parentheses correctly: (admin).

3. Final Answer:

   (admin) -> Option A

4. Quick Check:

   Parentheses folder = route group [OK]

Hint: Look for folder names wrapped in parentheses [OK]

Common Mistakes:

• Using square brackets instead of parentheses
• Not using any brackets
• Placing parentheses incorrectly

3. Given this folder structure in SvelteKit:

src/routes/(dashboard)/stats/+page.svelte
src/routes/(dashboard)/settings/+page.svelte

What will be the URL path to access the stats page?

medium

A. /(dashboard)/stats

B. /stats

C. /stats/dashboard

D. /dashboard/stats

Solution

1. Step 1: Understand route groups effect on URL

   Folders in parentheses do not appear in the URL path.

2. Step 2: Determine URL for stats page

   The stats folder is inside the group, so URL is just /stats.

3. Final Answer:

   /stats -> Option B

4. Quick Check:

   Route groups hide folder name in URL [OK]

Hint: Ignore parentheses folders when reading URLs [OK]

Common Mistakes:

• Including group folder name in URL
• Confusing parentheses with URL segments
• Assuming group name appears in URL

4. You created a folder named (admin) inside src/routes but your routes inside it are not working. What is a likely cause?

medium

A. You forgot to add a +page.svelte file inside the group folder

B. Parentheses are not allowed in folder names

C. Route groups must be named with square brackets

D. You need to restart the server after creating route groups

Solution

1. Step 1: Check route group folder requirements

   Route groups organize routes but need actual route files like +page.svelte inside.

2. Step 2: Identify missing file issue

   If no +page.svelte or route file exists, routes won't work.

3. Final Answer:

   You forgot to add a +page.svelte file inside the group folder -> Option A

4. Quick Check:

   Route groups need route files to work [OK]

Hint: Always add +page.svelte inside route groups [OK]

Common Mistakes:

• Thinking parentheses folders are invalid
• Using wrong bracket types
• Assuming server restart fixes missing files

5. You want to group routes for profile and settings under a common group without changing their URLs. Which folder structure achieves this correctly?

hard

A. src/routes/(user-profile-settings)/+page.svelte

B. src/routes/user/profile/+page.svelte and src/routes/user/settings/+page.svelte

C. src/routes/[user]/profile/+page.svelte and src/routes/[user]/settings/+page.svelte

D. src/routes/(user)/profile/+page.svelte and src/routes/(user)/settings/+page.svelte

Solution

1. Step 1: Understand grouping without URL change

   Route groups use parentheses folders to group routes without affecting URLs.

2. Step 2: Analyze folder structures

   src/routes/(user)/profile/+page.svelte and src/routes/(user)/settings/+page.svelte uses (user) folder to group profile and settings routes without adding /user to URLs.

3. Final Answer:

   src/routes/(user)/profile/+page.svelte and src/routes/(user)/settings/+page.svelte -> Option D

4. Quick Check:

   Parentheses folder groups routes, no URL change [OK]

Hint: Use parentheses folders to group routes invisibly [OK]

Common Mistakes:

• Using normal folders which add to URL
• Using square brackets which create dynamic routes
• Placing all routes in one file