`vue/no-unused-properties`

Disallow unused properties defined in defineProps

Default severity: warning
Presets: happy-path, nuxt, ecosystem, opinionated
Automatic fix: None; review the suggested change
Applies to: Vue SFC templates and blocks, with script context where the rule requires it
Options: No rule-specific options. Severity and preset selection are configurable.

Configuration (Vite+)

import { defineConfig } from "@vizejs/vite-plugin/vite-plus";

export default defineConfig({
  lint: {
    vize: {
      "preset": "incremental",
      "rules": {
        "vue/no-unused-properties": "warn"
      }
    },
  },
});

vp run lint

Bad

The component declares description as a prop but renders only title.

<script setup lang="ts">
defineProps<{ title: string; description: string }>();
</script>

<template>
  <h1>{{ title }}</h1>
</template>

Good

Both declared props are referenced by the template.

<script setup lang="ts">
defineProps<{ title: string; description: string }>();
</script>

<template>
  <h1>{{ title }}</h1>
  <p>{{ description }}</p>
</template>

Good avoids this rule's finding under the configuration above; other rules may still report diagnostics.

Implementation · All rules