valid-v-once.md

pageClass	sidebarDepth	title	description	since
rule-details	0	vue/valid-v-once	enforce valid `v-once` directives	v3.11.0

vue/valid-v-once

enforce valid v-once directives

• ⚙️ This rule is included in all of "plugin:vue/vue3-essential", *.configs["flat/essential"], "plugin:vue/essential", *.configs["flat/vue2-essential"], "plugin:vue/vue3-strongly-recommended", *.configs["flat/strongly-recommended"], "plugin:vue/strongly-recommended", *.configs["flat/vue2-strongly-recommended"], "plugin:vue/vue3-recommended", *.configs["flat/recommended"], "plugin:vue/recommended" and *.configs["flat/vue2-recommended"].

This rule checks whether every v-once directive is valid.

📖 Rule Details

This rule reports v-once directives in the following cases:

• The directive has that argument. E.g. <div v-once:aaa></div>
• The directive has that modifier. E.g. <div v-once.bbb></div>
• The directive has that attribute value. E.g. <div v-once="ccc"></div>

<template>
  <!-- ✓ GOOD -->
  <div v-once />

  <!-- ✗ BAD -->
  <div v-once:aaa />
  <div v-once.bbb />
  <div v-once="ccc" />
</template>

🔧 Options

Nothing.

🚀 Version

This rule was introduced in eslint-plugin-vue v3.11.0

🔍 Implementation

• Rule source
• Test source