错误：.eslintrc.js 中的 ESLint 配置无效：-意外的顶级属性“文件”

Question

I want to specify which files are to be linted in my eslintrc.js, so I've added files: ...

module.exports = {
  extends: [
    'react-app',
    'react-app/jest',
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'prettier',
  ],
  files: ['*.ts', '*.jsx', '*.ts', '*.tsx'],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: './tsconfig.json',
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 'latest',
    sourceType: 'module',
  },
  rules: {
    'testing-library/no-node-access': 'off',
  },
};

But getting the following error when my precommit runs:

precommit: BABEL_ENV=development eslint src --ext .js,.jsx,.ts,.tsx --fix'*.ts', '*.tsx'

Error: ESLint configuration in .eslintrc.js is invalid:
    - Unexpected top-level property "files".

Answer 1

The top-level rules and config apply to all the matched files according to your command line options ( --ext etc.)

You only use "files" inside nested "overrides" blocks when you want to specify which files the overrides apply to.

See https://eslint.org/docs/latest/user-guide/configuring/configuration-files#how-do-overrides-work