script/one-component-per-file

Disallow more than one component definition in a file

Bad · Good

Default severity: warning
Presets: opinionated, nuxt
Automatic fix: None; review the suggested change
Applies to: JS/TS scripts in Vue SFCs; examples show the relevant Options API or script setup form
Options: No rule-specific options. Severity and preset selection are configurable.

Configuration (Vite+)

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

export default defineConfig({
  vue: {
    linter: {
      "preset": "incremental",
      "rules": {
        "script/one-component-per-file": "warn"
      }
    },
  },
});

vp run lint

Bad

The file exports Parent and also defines an inline Child component in components.

<script lang="ts">
export default {
  name: 'Parent',
  components: {
    Child: { name: 'Child' }
  }
}
</script>

Good

The file defines only Parent.

<script lang="ts">
export default {
  name: 'Parent'
}
</script>

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

Implementation · All rules