.eslintrc.js

/*eslint-env node*/
module.exports = {
  env: {
    browser: true,
    es6: true,
  },
  plugins: ['@typescript-eslint', 'prettier', 'simple-import-sort'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:prettier/recommended',
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly',
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  rules: {
    'no-console': ['error', { allow: ['warn', 'error'] }],
    'no-unused-vars': 'off',
    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
    'prefer-const': 'error',
    'default-case': 'error',
    'no-duplicate-imports': 'error',
    eqeqeq: ['error', 'smart'],
    'simple-import-sort/imports': [
      'error',
      {
        groups: [
          // Side effect imports.
          ['^\\u0000'],

          // Node.js builtins.
          [`^(${require('module').builtinModules.join('|')})(/|$)`],

          // Packages `react` related packages come first.
          ['^@?\\w'],

          ['^(@types)(/.*|$)'],

          ['^(@test)(/.*|$)'],

          ['^@(|app|api|utils)(/.*|$)'],

          // Parent imports. Put `..` last.
          ['^\\.\\.(?!/?$)', '^\\.\\./?$'],

          // Other relative imports. Put same-folder imports and `.` last.
          ['^\\./(?=.*/)(?!/?$)', '^\\.(?!/?$)', '^\\./?$'],
        ],
      },
    ],
  },
};