Props in Vue.js
From the Vue.js cheat sheet · Component Communication · verified Jul 2026
Props
Passing data to child components
vue
<!-- Vue 3 Script Setup -->
<script setup>
// Define props
const props = defineProps({
title: String,
count: {
type: Number,
default: 0,
required: true,
validator: (value) => value >= 0
}
})
// Use props
console.log(props.title)
</script>💡 Props are read-only, child should not mutate them
⚡ Use factory functions for object/array default values
📌 HTML attributes are case-insensitive, use kebab-case in templates
🔥 v-bind without argument passes all properties as props
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