Скачать или смотреть The Ultimate Guide to Using ESLint CLI for Effective Code Formatting

Discover effective methods to fix issues with the ESLint CLI when it doesn't work, including setting up ESLint with Prettier for optimal coding standards.
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This video is based on the question https://stackoverflow.com/q/58700524/ asked by the user 'samir.a.ts' ( https://stackoverflow.com/u/12322593/ ) and on the answer https://stackoverflow.com/a/70511128/ provided by the user 'S.Mohammad Hosseininejad' ( https://stackoverflow.com/u/17360327/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Solving the ESLint CLI (global install) --fix does not work Issue

If you’ve reached a point where you can't seem to get ESLint's --fix option to work as intended, you’re not alone. This issue can leave even seasoned developers scratching their heads. Let’s dive into the problem and explore how to resolve it effectively.

Understanding the Problem

One user shared their experience of installing ESLint globally via the command npm i -g eslint and initializing it using eslint --init. While running eslint on their JavaScript file with the command eslint ./js/lesson_1.js worked perfectly, it was frustratingly ineffective when they tried to automatically fix the code using eslint --fix ./js/lesson_1.js. The expected fixes just didn’t happen. So, what went wrong?

Step-by-Step Solution

To help you get the --fix command working with ESLint, especially when you’re in a Vue2 + Nuxt project, follow these structured steps.

1. Install Prettier Globally

Prettier is a code formatter that works seamlessly with ESLint to ensure your code is not only linted but also formatted correctly. To install it globally, run the following command:

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2. Integrate ESLint with Prettier

Next, you need to set up the integration between ESLint and Prettier. This involves installing essential packages that allow them to work together harmoniously:

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3. Update Your ESLint Configuration

It's crucial to ensure that your ESLint configuration file (.eslintrc.js) is set up properly. Make sure to include Prettier in your configuration. Here’s a sample setup:

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4. Configure Prettier

After setting up ESLint, you need to create or update your Prettier configuration file. This file usually named .prettierrc, specifies your desired coding style. Here’s an example:

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5. Run ESLint with the Fix Command

Now that you've set everything up correctly, you can run ESLint to fix all issues in your entire project. This command will look at all JavaScript files in the directory:

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Important: Don’t forget the dot (.) at the end - it tells ESLint to process all files in the current directory.

Conclusion

By following these simple yet important steps, you should be able to get ESLint working with the --fix option effectively, especially alongside Prettier. With a properly configured environment, you can enhance your code quality and consistency seamlessly. Remember, combining ESLint with Prettier not only improves your coding standards but also saves time as you refine your project's coding styles effortlessly.

Happy coding!