.eslintrc.js

module.exports = {
  root: true,
  env: {
    browser: true,
    node: true
  },
  extends: [
    '@nuxtjs',
    'plugin:@typescript-eslint/recommended',
    'plugin:vue/recommended',
    'prettier/@typescript-eslint',
    'plugin:prettier/recommended'
  ],
  plugins: [
  ],
  // https://qiita.com/markey/items/cfeb2a07e11d43676505
  // https://dev.to/robertcoopercode/using-eslint-and-prettier-in-a-typescript-project-53jb
  // parserに'vue-eslint-parser'を指定し、'@typescript-eslint/parser'はparserOptionsに指定する
  parser:  'vue-eslint-parser',
  parserOptions: {
    parser: '@typescript-eslint/parser',
    sourceType: 'module',
    ecmaFeatures: {
      legacyDecorators: true
    },
    warnOnUnsupportedTypeScriptVersion: false
  },
  // add your custom rules here
  rules: {
    'dot-notation': 'off',
    'no-console': 'off',
    '@typescript-eslint/no-empty-interface': 'off',
    '@typescript-eslint/no-object-literal-type-assertion': 'off',
    '@typescript-eslint/interface-name-prefix': 'off',
    '@typescript-eslint/no-unused-vars': 'off',
    '@typescript-eslint/no-non-null-assertion': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-var-requires': 'off',
    'import/no-mutable-exports': 'off',
    // https://github.com/vuejs/eslint-plugin-vue/blob/master/docs/rules/html-self-closing.md
    'vue/html-self-closing': ['error', {
      html: {
        void: 'always',
        normal: 'never',
        component: 'always'
      },
      svg: 'always',
      math: 'always'
    }]
  }
}