.eslintrc.js

module.exports = {
  extends: [
    'standard',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:react/recommended',
    'prettier',
    'prettier/react',
    'prettier/standard',
  ],

  plugins: ['react-native'],

  env: {
    'react-native/react-native': true,
  },

  settings: {
    'import/core-modules': ['react-native-screens'],
    'import/ignore': ['node_modules/react-native/index\\.js$'],
    'import/resolver': {
      node: {
        paths: ['src'],
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.native.js'],
      },
    },
    react: {
      version: 'detect',
    },
  },

  rules: {
    'react/prop-types': 'off',
  },

  overrides: [
    {
      files: ['*.{js,jsx}'],
      parser: 'babel-eslint',
    },
    {
      files: ['*.{ts,tsx}'],
      parser: '@typescript-eslint/parser',
      extends: [
        'plugin:@typescript-eslint/recommended',
        'plugin:import/typescript',
        'prettier/@typescript-eslint',
      ],
      settings: {
        'import/parsers': {
          '@typescript-eslint/parser': ['.ts', '.tsx'],
        },
      },
      rules: {
        '@typescript-eslint/array-type': 'error',
        '@typescript-eslint/consistent-type-assertions': [
          'error',
          { assertionStyle: 'as' },
        ],
        '@typescript-eslint/member-delimiter-style': 'error',
        '@typescript-eslint/no-dynamic-delete': 'error',
        '@typescript-eslint/no-empty-interface': [
          'error',
          { allowSingleExtends: true },
        ],
        '@typescript-eslint/no-extraneous-class': 'error',
        '@typescript-eslint/no-unused-vars': [
          'error',
          { argsIgnorePattern: '^_' },
        ],
        '@typescript-eslint/no-use-before-define': [
          'error',
          {
            functions: false,
            classes: false,
            variables: false,
            typedefs: false,
          },
        ],
        '@typescript-eslint/no-useless-constructor': 'error',
        '@typescript-eslint/prefer-for-of': 'error',
        '@typescript-eslint/prefer-function-type': 'error',
        '@typescript-eslint/prefer-optional-chain': 'error',
        '@typescript-eslint/unified-signatures': 'error',

        'default-case': 'off',
        'no-unused-vars': 'off',
        'no-array-constructor': 'off',
        'no-use-before-define': 'off',
      },
    },
  ],
};