.eslintrc.js

module.exports = {
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:prettier/recommended',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:import/typescript',
    "plugin:jest/recommended",
  ],
    plugins: ['prefer-arrow', 'testing-library', 'jest'],
    env: {
      browser: true,
      jasmine: true,
      jest: true,
      es6: true,
    },
    globals: {
      fetchMock: true,
      process: true,
    },
    rules: {
      'import/default': 'off',
      'import/named': 'off',
      'import/order': [
        'error',
        {
          groups: [
            'builtin',
            'external',
            'internal',
            'parent',
            'sibling',
            'index',
          ],
          pathGroupsExcludedImportTypes: [],
          'newlines-between': 'always',
          alphabetize: {
            order: 'asc',
            caseInsensitive: true,
          },
        },
      ],
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/naming-convention': [
        'error',
        {
          format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
          leadingUnderscore: 'allow',
          selector: 'default',
        },
      ],
      '@typescript-eslint/no-unused-vars': [
        'warn',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
          caughtErrorsIgnorePattern: '^_',
        },
      ],
      'no-useless-return': 'off',
    },
    settings: {
      react: {
        pragma: 'React',
        version: 'detect',
      },
      'import/extensions': ['.js', '.jsx', '.ts', '.tsx'],
      'import/parsers': {
        '@typescript-eslint/parser': ['.ts', '.tsx'],
      },
      'import/resolver': {
        typescript: {
          alwaysTryTypes: true,
        },
      },
    },
    parser: '@typescript-eslint/parser',
  };