type/no-unnecessary-template-expression

Disallow template literals that wrap a single expression unnecessarily.

Applies to: Type information in Vue SFC scripts and templates, for the constructs shown below.

This rule reads type information from your TypeScript project (tsconfig.json), so the configuration sets typeAware: true. typeAware does not turn on opt-in rules by itself.

Bad

The template contains only label, so it does not build a new string.

<script setup lang="ts">
const label = "a";
const wrapped = `${label}`;
</script>

Good

Assigning label uses the string without a template wrapper.

<script setup lang="ts">
const label = "a";
const wrapped = label;
</script>

Configuration (Vite+)

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

export default defineConfig({}).withVue({
  linter: {
    "preset": "incremental",
    "rules": {
      "type/no-unnecessary-template-expression": "warn"
    },
    "typeAware": true
  },
});

Then run vp run lint.

Related

• Type and script rules
• All rules
• Source code