.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser', // Specifies the ESLint parser
  extends: [
    'plugin:@typescript-eslint/recommended', // Uses the recommended rules from @typescript-eslint/eslint-plugin
    'plugin:prettier/recommended',
  ],
  plugins: ['sort-imports-es6-autofix'],
  parserOptions: {
    ecmaVersion: 2018, // Allows for the parsing of modern ECMAScript features
    sourceType: 'module', // Allows for the use of imports
    ecmaFeatures: {
      jsx: true,
    },
  },
  overrides: [
    {
      files: ['*.js', '*.jsx'],
      rules: {
        // And as mentioned here this rule will freak out on .js files as well
        // https://github.com/typescript-eslint/typescript-eslint/issues/906
        //
        // So we disable it for .js files using overrides
        '@typescript-eslint/explicit-function-return-type': 0,

        // And the same goes for member accessibility
        //
        // See https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/explicit-member-accessibility.md
        '@typescript-eslint/explicit-member-accessibility': 0,

        // And last but not least require() calls are enabled in js files
        '@typescript-eslint/no-var-requires': 0,
      },
    },
  ],
  rules: {
    // Prevent forgotten console.* statements
    'no-console': 1,

    // Make sure imports get sorted
    'sort-imports-es6-autofix/sort-imports-es6': [
      2,
      {
        ignoreCase: false,
        ignoreMemberSort: false,
        memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single'],
      },
    ],

    '@typescript-eslint/no-use-before-define': [1, { functions: false }],

    '@typescript-eslint/explicit-function-return-type': 0,
  },
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.ts', '.js'],
      },
    },
  },
};