valid-v-memo.md

pageClass	sidebarDepth	title	description	since
rule-details	0	vue/valid-v-memo	enforce valid `v-memo` directives	v7.16.0

vue/valid-v-memo

enforce valid v-memo directives

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

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

📖 Rule Details

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

• The directive has that argument. E.g. <div v-memo:aaa></div>
• The directive has that modifier. E.g. <div v-memo.bbb></div>
• The directive does not have that attribute value. E.g. <div v-memo></div>
• The attribute value of the directive is definitely not array. E.g. <div v-memo="{x}"></div>
• The directive was used inside v-for. E.g. <div v-for="i in items"><div v-memo="[i]" /></div>

<template>
  <!-- ✓ GOOD -->
  <div v-memo="[x]" />

  <!-- ✗ BAD -->
  <div v-memo />
  <div v-memo:aaa="[x]" />
  <div v-memo.bbb="[x]" />
  <div v-memo="{ x }" />
  <div v-for="i in items">
    <div v-memo="[i]" />
  </div>
</template>

::: warning Note This rule does not check syntax errors in directives because it's checked by vue/no-parsing-error rule. :::

🔧 Options

Nothing.

👫 Related Rules

• vue/no-parsing-error

📚 Further Reading

• API - v-memo

🚀 Version

This rule was introduced in eslint-plugin-vue v7.16.0

🔍 Implementation

• Rule source
• Test source