index.js

module.exports = {
  extends: [
    'plugin:@typescript-eslint/recommended',
    'plugin:@typescript-eslint/recommended-requiring-type-checking',
    'prettier',
  ],
  parser: '@typescript-eslint/parser',
  plugins: ['import', '@typescript-eslint', 'prettier', 'unused-imports'],
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
    'import/resolver': { typescript: {} },
  },
  env: {
    browser: true,
    node: true,
  },
  rules: {
    'no-tabs': 0,
    'no-restricted-globals': 0,
    'no-buffer-constructor': 0,
    'no-mixed-operators': 0,
    'no-plusplus': 0,
    'no-bitwise': 0,
    'prefer-promise-reject-errors': 0,
    'class-methods-use-this': 0,
    'prefer-destructuring': 0,
    'no-prototype-builtins': 0,
    'eol-last': 2,
    'no-debugger': 1,
    'no-mixed-requires': 0,
    'no-underscore-dangle': 0,
    'no-multi-spaces': 0,
    'no-trailing-spaces': 0,
    'no-extra-boolean-cast': 0,
    'no-var': 2,
    'no-param-reassign': 0,
    'no-else-return': 0,
    'no-console': 0,
    'prefer-const': 2,
    'new-cap': 0,
    semi: 0,
    'valid-jsdoc': 'off',
    'object-curly-newline': 'off',
    'arrow-parens': 'off',
    'function-paren-newline': 0,
    'no-shadow': 'off',
    'no-use-before-define': 'off',

    // https://github.com/prettier/eslint-plugin-prettier
    'prettier/prettier': 'error',

    // TODO: enable when this is fixed https://github.com/benmosher/eslint-plugin-import/issues/1282
    'import/named': 'off',
    'import/no-cycle': 0,
    'import/prefer-default-export': 0,

    '@typescript-eslint/array-type': [
      'error',
      {
        default: 'array',
        readonly: 'array',
      },
    ],
    '@typescript-eslint/no-non-null-assertion': ['error'],

    '@typescript-eslint/explicit-member-accessibility': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/class-name-casing': 'off',
    '@typescript-eslint/camelcase': 'off',
    '@typescript-eslint/member-delimiter-style': 'off',
    '@typescript-eslint/no-angle-bracket-type-assertion': 'off',
    '@typescript-eslint/prefer-interface': 'off',
    '@typescript-eslint/no-use-before-define': 'off',
    '@typescript-eslint/no-unused-vars': 'off',

    // TODO: enable this when reasonable
    '@typescript-eslint/no-explicit-any': 'off',

    // TODO: enable this when reasonable
    '@typescript-eslint/promise-function-async': 'off',
    'unused-imports/no-unused-imports': 'error',
  },
};