Vue.js
Lesson 5 of 8
63%
Free Section Starter (Lesson 5)
VUE Free Section Starter Challenge 30 min

5. Component Props & Custom Emits (@event)

Overview: Establish unidirectional data flow in Vue 3: passing props down and emitting custom typed events up.

Concept & Syntax Guide

In Vue 3 Composition API, child components receive read-only data via `defineProps()` and notify parent components of actions via `defineEmits()`. This maintains predictable state across nested components.

Hands-On Practice Exercise

Create a Template Card with Purchase Emit

Build a component that accepts `title` and `price` props and triggers a `purchase` event when clicked.

Target Output: SaaS Dashboard Template
Need a hint? Click here to reveal
Hint: Check syntax carefully and make sure your code contains: SaaS Dashboard Template
VUE Code Editor
1
2
3
4
5
6
7
8
9
10