Eslint: warning File ignored by default. Use a negated ignore pattern

Question

I am new in using Eslint.

So far I have installed Eslint in my local project and configured it. The eslintrc.js file contains

module.exports = {
  env: {
    node: true,
    commonjs: true,
    es6: true,
    mocha: true,
  },
  extends: [
    'airbnb-base',
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly',
  },
  parserOptions: {
    ecmaVersion: 2018,
  },
  rules: {
  },
};

And in package.json I have

  "scripts": {
    "lint": "eslint .eslintrc.js --fix",
}

In terminal I run

npm run lint

And the output is

> [email protected] lint C:\nodeprojects\restapi
> eslint .eslintrc.js --fix


C:\nodeprojects\restapi\.eslintrc.js
  0:0  warning  File ignored by default.  Use a negated ignore pattern (like "--ignore-pattern '!<relative/path/to/filename>'") to override

But if I run

eslint <foldername> --fix then it works.

I am using webstorm IDE and in windows os.

Any help is highly appreciated.

Solution 1

Your npm script runs the linter on the .eslintrc.js file and this file is as the comment says File ignored by default.

You need to change the lint script from:

"lint": "eslint .eslintrc.js --fix",

to:

"lint": "eslint <foldername> --fix"

Where <foldername> is the correct folder.

Solution 2

You can create a .eslintignore file next to .eslintrc.js. Then in .eslintignore put:

!.eslintrc.js

Comments

[Prithviraj Mitra]

Thanks a lot. I have changed to "lint": "eslint . --fix" and I believe that it will run on all the files in the current folder? If so then will it include node_modules folder too? Also, my second question is that then how .eslintrc.js file will be called or related in this whole process.

[Mac_W]

You can create another file in your root called .eslintignore where you can place folders to be ignored like /node_modules/ in this case.

[William Swanson]

Also, eslint ignores node_modules and bower_components by default, so you don't need to do anything extra for those.