eslint.config.js

import upleveled from 'eslint-config-upleveled';

/** @type
 * {import('@typescript-eslint/utils/ts-eslint').FlatConfig.ConfigArray}
 * */
const config = [
  ...upleveled,
  {
    rules: {
      // Copied from UpLeveled ESLint config
      '@typescript-eslint/naming-convention': [
        'warn',
        // Allow PascalCase for React Navigation's Stack variable
        // (object) from the `createStackNavigator` function
        // https://github.com/typescript-eslint/typescript-eslint/issues/2149#issuecomment-1315578975
        {
          selector: 'variable',
          format: ['camelCase', 'PascalCase'],
          filter: {
            regex: '^Stack$',
            match: true,
          },
        },
        {
          selector: 'variable',
          types: ['boolean', 'string', 'number', 'array'],
          format: ['camelCase', 'UPPER_CASE'],
          leadingUnderscore: 'allow',
          trailingUnderscore: 'allow',
        },
        {
          selector: 'typeLike',
          format: ['PascalCase'],
        },
        {
          selector: 'function',
          format: ['camelCase', 'PascalCase'],
          leadingUnderscore: 'allow',
        },
        {
          selector: 'variable',
          types: ['function'],
          format: ['camelCase', 'PascalCase'],
          leadingUnderscore: 'allow',
        },
        {
          selector: 'property',
          format: null,
        },
        {
          selector: 'parameter',
          format: ['camelCase', 'snake_case', 'PascalCase'],
        },
      ],
      'react/style-prop-object': [
        'warn',
        {
          allow: ['StatusBar'],
        },
      ],
    },
  },
  {
    files: ['e2e/**/*.ts'],
    languageOptions: {
      globals: {
        describe: 'readonly',
        beforeAll: 'readonly',
        beforeEach: 'readonly',
        it: 'readonly',
      },
    },
  },
];

export default config;