.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    node: true,
    jest: true
  },
  extends: [
    'airbnb-base',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:import/typescript',
    'plugin:sonarjs/recommended'
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly'
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2018,
    sourceType: 'module'
  },
  plugins: ['@typescript-eslint', 'promise', 'sonarjs'],
  overrides: [
    {
      files: ['*.ts', '*.tsx'],
      rules: {
        '@typescript-eslint/no-unused-vars': [2, { args: 'none' }]
      }
    }
  ],
  rules: {
    'max-len': ['error', 120],
    'no-await-in-loop': 'off',
    'no-restricted-syntax': 'off',
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        ts: 'never'
      }
    ]
  }
};