Vue CLI v4.3.1
? Please pick a preset: Manually select features
? Check the features needed for your project: Babel, TS, CSS Pre-processors, Linter
? Use class-style component syntax? Yes
? Use Babel alongside TypeScript (required for modern mode, auto-detected polyfills, transpiling JSX)? Yes
? Pick a CSS pre-processor (PostCSS, Autoprefixer and CSS Modules are supported by default): Stylus
? Pick a linter / formatter config: Prettier
? Pick additional lint features: Lint on save
? Where do you prefer placing config for Babel, ESLint, etc.? In dedicated config files
? Save this as a preset for future projects? No

{
    "tabWidth": 2,
    "singleQuote": true,
    "endOfLine": "auto",
    "trailingComma": "es5"
}

{
    "tabWidth": 2,
    "singleQuote": true,
    "endOfLine": "auto",
    "trailingComma": "es5"
}

module.exports = {
  root: true,
  env: {
    node: true,
  },
  extends: [
    'plugin:vue/essential',
    'eslint:recommended',
    '@vue/typescript/recommended',
    '@vue/prettier',
    '@vue/prettier/@typescript-eslint',
  ],
  parserOptions: {
    ecmaVersion: 2020,
  },
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
  },
};

{
  "editor.formatOnSave": true,
  "eslint.options": {
    "extensions": [".js", ".vue"]
  },
  "eslint.validate": ["javascript", "vue"]
}

{
...
(略)
...
  "prettier.configPath": "path/to/.prettierrc" // 指定
}

{
...
(略)
...
  "eslint.workingDirectories": ["./path/to"], // 指定
}