如何在 eslint 中忽略所有没有扩展名的文件

Question

Currently in my.eslintignore I have the following:

**/*.json
**/*.svg
**/*.bat
**/*.sh
**/*.html
**/*.png
**/*.txt
**/*.ico
**/*.md

How can I prevent eslint from linting files that have no extension? For example, some of my docker files don't have an extension and I don't want to list them all out explicitly.

Answer 1

The best solution is to only tell ESLint to search for files matching JavaScript extensions you use (eg ts,tsx,js,jsx,cjs,mjs ) instead of telling it to find everything, and then ignoring specific extensions.

To tell ESLint to add extensions, you can use the --ext command-line option, or use the overrides configuration as shown below:

.eslintrc.js

module.exports = {
  // [Your config here...]
  // Empty overrides block that lists your globs for the 
  overrides: [
    {
      files: ["**/*.{ts,tsx,js,jsx}"]
    }
  ]
};

Then make sure you are telling ESLint the path you want to lint by using eslint./ or eslint./src in your lint script, without using glob patterns for extensions, as running eslint ** for instance will load every file extension.

package.json

{
  "name": "example",
  "version": "1.0.0",
  "scripts": {
    "lint": "eslint ./"
  }
}

After you've made these changes, you should no longer need an ESLint ignore file just to disable common file extensions.