Vue Route Params

Dynamic segments like :id populate useRoute().params. This lesson covers practical patterns, syntax, and mistakes to avoid.

Working with Params

Dynamic segments like :id populate useRoute().params.

Watch params when reusing the same component for different ids.

import { useRoute } from 'vue-router'
import { watch } from 'vue'
const route = useRoute()
watch(() => route.params.id, loadUser, { immediate: true })

Reload data when the id param changes.

Query vs Params

params for identity; query for filters

Prefer Composition API + script setup.
Use computed for derived UI.
Keep side effects intentional.
Practice in a small Vite app.

Vue Route Params Cheatsheet

Quick reference for patterns covered in this lesson.

Item	Example	Purpose
useRoute	read	Composable
useRouter	navigate	Composable
watch param	reuse component	Critical
props	params to props	Clean
404	catchAll	UX
encode	URI	Safety

Component Reuse

Vue reuses components for same route definition — watch params.

Common Mistakes

Assuming created() runs again for each id.
Putting filters into path params unnecessarily.

Key Takeaways

Vue Route Params is important in Vue apps.
Practice in SFCs.
Prefer clear naming.
Check Vue docs for details.

Pro Tip

Add a catch-all route for nice 404 pages.