vue/require-explicit-emits

require emits option with name triggered by $emit()

• ⚙️ This rule is included in all of "plugin:vue/vue3-strongly-recommended", *.configs["flat/strongly-recommended"], "plugin:vue/vue3-recommended" and *.configs["flat/recommended"].
• 💡 Some problems reported by this rule are manually fixable by editor suggestions.

📖 Rule Details

This rule reports event triggers not declared with the emits option. (The emits option is a new in Vue.js 3.0.0+)

Explicit emits declaration serves as self-documenting code. This can be useful for other developers to instantly understand what events the component is supposed to emit. Also, with attribute fallthrough changes in Vue.js 3.0.0+, v-on listeners on components will fallthrough as native listeners by default. Declare it as a component-only event in emits to avoid unnecessary registration of native listeners.

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🔧 Options

{
  "vue/require-explicit-emits": ["error", {
    "allowProps": false
  }]
}

• "allowProps" ... If true, allow event names defined in props. default false

"allowProps": true

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👫 Related Rules

• vue/no-unused-emit-declarations
• vue/require-explicit-slots

📚 Further Reading

• Guide - Custom Events / Defining Custom Events
• Vue RFCs - 0030-emits-option

🚀 Version

This rule was introduced in eslint-plugin-vue v7.0.0

🔍 Implementation

• Rule source
• Test source