require-emit-validator.md

pageClass	sidebarDepth	title	description	since
rule-details	0	vue/require-emit-validator	require type definitions in emits	v7.10.0

vue/require-emit-validator

require type definitions in emits

• 💡 Some problems reported by this rule are manually fixable by editor suggestions.

📖 Rule Details

This rule enforces that a emits statement contains type definition.

Declaring emits with types can bring better maintenance. Even if using with TypeScript, this can provide better type inference when annotating parameters with types.

<script>
/* ✓ GOOD */
Vue.component('foo', {
  emits: {
    // Emit with arguments
    foo: (payload) => { /* validate payload */ },
    // Emit without parameters
    bar: () => true,
  }
})

/* ✗ BAD */
Vue.component('bar', {
  emits: ['foo']
})

Vue.component('baz', {
  emits: {
    foo: null,
  }
})
</script>

🔧 Options

Nothing.

📚 Further Reading

• API Reference

🚀 Version

This rule was introduced in eslint-plugin-vue v7.10.0

🔍 Implementation

• Rule source
• Test source