index.js

/**
 * @type {import("eslint").Linter.Config}
 */
module.exports = {
  extends: ['airbnb-base', 'prettier'],
  plugins: ['prettier'],
  env: { node: true, browser: true },
  overrides: [
    {
      files: ['**/*.spec.js'],
      env: { jest: true, mocha: true },
    },
  ],
  rules: {
    'no-unused-expressions': 'off',
    'no-case-declarations': 0,
    'no-await-in-loop': 0,
    'no-continue': 0,
    'no-restricted-syntax': 0,
    'no-shadow': 0,
    'class-methods-use-this': 'off',
    complexity: ['error', 7],
    'import/no-cycle': 'off',
    'import/no-extraneous-dependencies': 'off',
    'import/order': [
      'error',
      {
        groups: ['builtin', 'external', 'parent', 'sibling', 'index'],
        alphabetize: { order: 'asc' },
        'newlines-between': 'always',
      },
    ],
    'import/prefer-default-export': 'off',
    'max-classes-per-file': 'off',
    'no-console': 'off',
    'no-param-reassign': 'off',
    'no-plusplus': 'off',
    'no-underscore-dangle': 'off',
    'no-unused-vars': [
      'error',
      {
        argsIgnorePattern: '^_',
        ignoreRestSiblings: true,
      },
    ],
    'padding-line-between-statements': [
      'error',
      {
        blankLine: 'always',
        prev: 'multiline-expression',
        next: '*',
      },
      {
        blankLine: 'always',
        prev: ['const'],
        next: ['let'],
      },
      {
        blankLine: 'always',
        prev: ['let'],
        next: ['const'],
      },
      {
        blankLine: 'always',
        prev: '*',
        next: 'block-like',
      },
    ],
    'prefer-destructuring': [
      'error',
      {
        VariableDeclarator: {
          array: false,
          object: true,
        },
        AssignmentExpression: {
          array: false,
          object: false,
        },
      },
      {
        enforceForRenamedProperties: false,
      },
    ],

    quotes: [
      'error',
      'single',
      { allowTemplateLiterals: false, avoidEscape: true },
    ],
    'require-await': 'error',
    'prettier/prettier': [
      'error',
      {
        singleQuote: true,
        printWidth: 80,
        tabWidth: 2,
        semi: true,
        trailingComma: 'all',
        arrowParens: 'avoid',
        endOfLine: 'auto',
      },
    ],
  },
};