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Overview
In Vue 3, components now have official support for multi-root node components, i.e., fragments!
2.x Syntax
In 2.x, multi-root components were not supported and would emit a warning when a user accidentally created one. As a result, many components are wrapped in a single <div>
in order to fix this error.
html
<!-- Layout.vue -->
<template>
<div>
<header>...</header>
<main>...</main>
<footer>...</footer>
</div>
</template>
3.x Syntax
In 3.x, components now can have multiple root nodes! However, this does require developers to explicitly define where attributes should be distributed.
html
<!-- Layout.vue -->
<template>
<header>...</header>
<main v-bind="$attrs">...</main>
<footer>...</footer>
</template>
For more information on how attribute inheritance works, see Fallthrough Attributes.