# vue/no-v-for-template-key-on-child
disallow key of
<template v-for>placed on child elements
- ⚙️ This rule is included in all of
"plugin:vue/vue3-essential","plugin:vue/vue3-strongly-recommended"and"plugin:vue/vue3-recommended".
# 📖 Rule Details
This rule reports the key of the <template v-for> placed on the child elements.
In Vue.js 3.x, with the support for fragments, the <template v-for> key can be placed on the <template> tag.
See Migration Guide - key attribute > With <template v-for> (opens new window) for more details.
Note
This rule is targeted at Vue.js 3.x. If you are using Vue.js 2.x, enable the vue/no-v-for-template-key rule instead. Don't enable both rules together; they are conflicting.
<template>
<!-- ✓ GOOD -->
<template v-for="todo in todos" :key="todo">
<Foo />
</template>
<!-- ✗ BAD -->
<template v-for="todo in todos">
<Foo :key="todo" />
</template>
</template>
# 🔧 Options
Nothing.
# 👫 Related Rules
# 📚 Further Reading
# 🚀 Version
This rule was introduced in eslint-plugin-vue v7.0.0