RouterLink for navigation in Vue - Step-by-Step Execution

Concept Flow - RouterLink for navigation

User clicks RouterLink

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RouterLink intercepts click

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Router updates URL

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Vue Router matches route

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Component for route renders

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Page content updates

This flow shows how clicking a RouterLink changes the URL and updates the displayed page without reloading.

Execution Sample

Vue

<RouterLink to="/about">About</RouterLink>

A RouterLink component that navigates to the '/about' page when clicked.

Execution Table

Step	Action	URL Before	URL After	Rendered Component	Notes
1	Initial page load	/home	/home	HomeComponent	User starts on home page
2	User clicks RouterLink	/home	/about	HomeComponent	Click intercepted, URL changes
3	Router matches '/about'	/about	/about	AboutComponent	Router finds AboutComponent
4	Component renders	/about	/about	AboutComponent	Page content updates to About
5	User clicks RouterLink again	/about	/contact	AboutComponent	Click intercepted, URL changes
6	Router matches '/contact'	/contact	/contact	ContactComponent	Router finds ContactComponent
7	Component renders	/contact	/contact	ContactComponent	Page content updates to Contact
8	User clicks external link	/contact	/contact	ContactComponent	External link causes full page reload, no RouterLink
9	Exit	/contact	/contact	ContactComponent	Navigation stops here

💡 User navigates outside Vue Router or closes app, stopping RouterLink navigation

Variable Tracker

Variable	Start	After Step 2	After Step 3	After Step 5	After Step 6	Final
currentURL	/home	/about	/about	/contact	/contact	/contact
renderedComponent	HomeComponent	HomeComponent	AboutComponent	AboutComponent	ContactComponent	ContactComponent

Key Moments - 3 Insights

Why doesn't clicking RouterLink reload the whole page?

RouterLink intercepts the click event and changes the URL internally without a full page reload, as shown in steps 2 and 3 of the execution_table.

What happens if the URL does not match any route?

Vue Router will not find a matching component, so the renderedComponent stays the same or shows a fallback, but this example assumes valid routes as in steps 3 and 6.

Why does clicking an external link cause a full page reload?

External links are not handled by RouterLink, so the browser performs a normal navigation, as noted in step 8.

Visual Quiz - 3 Questions

Look at the execution_table, what is the renderedComponent after step 3?

A AboutComponent

B HomeComponent

C ContactComponent

D None

💡 Hint

Check the 'Rendered Component' column at step 3 in the execution_table.

At which step does the URL change to '/contact'?

A Step 2

B Step 3

C Step 5

D Step 6

💡 Hint

Look at the 'URL After' column in the execution_table for when '/contact' first appears.

If the user clicks a RouterLink to '/home' from '/contact', what will happen to currentURL in variable_tracker?

A It stays '/contact'

B It changes to '/home'

C It becomes empty

D It causes an error

💡 Hint

RouterLink changes currentURL to the new route as shown in variable_tracker changes.

Concept Snapshot

RouterLink lets users click links that change the URL without reloading the page.
Use <RouterLink to="/path"> to create navigation links.
Clicking updates the URL and renders the matched component.
This keeps navigation fast and smooth in Vue apps.
External links still reload the page.
RouterLink intercepts clicks to handle navigation internally.

Full Transcript

RouterLink is a Vue component that creates clickable links for navigation inside a Vue app. When a user clicks a RouterLink, it stops the browser from reloading the page. Instead, it changes the URL internally and tells Vue Router to show the right page component. This makes navigation fast and smooth. The execution table shows steps from clicking a RouterLink to the page updating. Variables like currentURL and renderedComponent change as navigation happens. If the user clicks a normal external link, the page reloads because RouterLink does not handle it. This visual trace helps beginners see how RouterLink works step-by-step.