eslint.config.mjs

import eslint from '@eslint/js'
import tseslint from 'typescript-eslint'
import eslintConfigPrettier from 'eslint-config-prettier'
import jest from 'eslint-plugin-jest'

export default tseslint.config(
  eslintConfigPrettier,
  jest.configs['flat/recommended'],
  eslint.configs.recommended,
  ...tseslint.configs.recommended,
  {
    languageOptions: {
      globals: {
        process: true,
        module: true
      }
    },
    rules: {
      'jest/no-conditional-expect': 'off',
      '@typescript-eslint/ban-types': [
        'error',
        {
          types: {
            Number: {
              message: 'Use number instead',
              fixWith: 'number'
            },
            String: {
              message: 'Use string instead',
              fixWith: 'string'
            },
            Boolean: {
              message: 'Use boolean instead',
              fixWith: 'boolean'
            },
            Object: {
              message: 'Use object instead',
              fixWith: 'object'
            },
            '{}': {
              message: 'Use object instead',
              fixWith: 'object'
            },
            Symbol: {
              message: 'Use symbol instead',
              fixWith: 'symbol'
            }
          }
        }
      ],
      '@typescript-eslint/array-type': ['error', {default: 'array'}],
      '@typescript-eslint/explicit-module-boundary-types': 'error',
      '@typescript-eslint/no-explicit-any': 'error',
      '@typescript-eslint/no-unused-vars': 'error',
      '@typescript-eslint/explicit-function-return-type': 'error',
      'object-shorthand': ['error', 'always'],
      'prefer-destructuring': [
        'error',
        {
          array: false,
          object: true
        },
        {
          enforceForRenamedProperties: false
        }
      ],
      'no-console': ['error', {allow: ['warn', 'error']}],
      'no-alert': 'error',
      'no-debugger': 'error'
    }
  }
)