.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
  },
  extends: ['airbnb-base'],
  parserOptions: {
    ecmaVersion: 'latest',
    sourceType: 'module',
  },
  rules: {
    'array-bracket-spacing': ['error', 'never'],
    'arrow-body-style': ['error', 'as-needed'],
    'arrow-parens': ['error', 'always'],
    'brace-style': 'error',
    'comma-dangle': [
      'error',
      {
        arrays: 'always-multiline',
        exports: 'always-multiline',
        functions: 'only-multiline',
        imports: 'always-multiline',
        objects: 'always-multiline',
      },
    ],
    'comma-spacing': ['error', { after: true, before: false }],
    curly: 'error',
    'eol-last': ['error', 'always'],
    eqeqeq: ['error', 'always'],
    'func-names': 'error',
    'import/no-extraneous-dependencies': 'error',
    'import/no-unresolved': 'error',
    'import/order': [
      'error',
      {
        alphabetize: {
          order: 'asc',
        },
        groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index'],
        'newlines-between': 'always-and-inside-groups',
      },
    ],
    indent: ['error', 2, { SwitchCase: 1 }],
    'jsx-quotes': ['error', 'prefer-double'],
    'key-spacing': ['error', { mode: 'strict' }],
    'max-depth': ['error', 3],
    'max-len': [
      'error',
      {
        code: 125,
        ignoreComments: true,
        ignoreStrings: true,
        ignoreTemplateLiterals: true,
      },
    ],
    'max-params': ['error', 3],
    'multiline-comment-style': 'off',
    'no-alert': 'error',
    'no-console': 'warn',
    'no-duplicate-imports': 'error',
    'no-empty-function': 'warn',
    'no-extra-boolean-cast': 'warn',
    'no-extra-semi': 'warn',
    'no-magic-numbers': [
      'error',
      {
        ignore: [-1, 0, 1, 2, 30, 60, 100, 1000],
        ignoreArrayIndexes: true,
      },
    ],
    'no-multi-spaces': 'warn',
    'no-multiple-empty-lines': ['error', { max: 1, maxEOF: 0 }],
    'no-plusplus': 'warn',
    'no-trailing-spaces': 'warn',
    'no-unreachable': 'error',
    'no-unused-expressions': 'warn',
    'no-unused-vars': ['warn', { args: 'none' }],
    'no-use-before-define': 'off',
    'no-var': 'error',
    'padding-line-between-statements': [
      'error',
      { blankLine: 'always', next: 'return', prev: '*' },
    ],
    'prefer-arrow-callback': 'warn',
    'prefer-const': 'error',
    'prettier/prettier': ['error', prettierOptions],
    quotes: ['error', 'single', { avoidEscape: true }],
    semi: ['error', 'always'],
    'semi-spacing': ['error', { after: true, before: false }],
    'sonarjs/cognitive-complexity': ['error', 30],
    'sort-keys': [
      'error',
      'asc',
      {
        caseSensitive: false,
        minKeys: 2,
        natural: false,
      },
    ],
    'space-before-blocks': 'error',
    'space-before-function-paren': [
      'error',
      { anonymous: 'always', asyncArrow: 'always', named: 'never' },
    ],
    'space-in-parens': ['error', 'never'],
  },
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.ts', '.tsx'],
      },
      typescript: {},
    },
    react: {
      version: '17.0.2',
    },
  },
};