Скачать или смотреть Resolving Chokidar Issues: Why It Works in Console But Not with npm run

Discover how to fix the issue of `Chokidar` not triggering updates when called via an `npm` script. Learn practical solutions and troubleshoot like a pro!
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This video is based on the question https://stackoverflow.com/q/62395519/ asked by the user 'Areg' ( https://stackoverflow.com/u/4967796/ ) and on the answer https://stackoverflow.com/a/62396653/ provided by the user 'Areg' ( https://stackoverflow.com/u/4967796/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Chokidar Not Working with npm run: Understanding the Issue

If you're a developer using Chokidar to monitor your Tailwind CSS files, you may have encountered a perplexing issue: the file watcher works perfectly in the console but fails to trigger the expected updates when called via an npm run command. In this post, we’ll break down the problem and provide you with a step-by-step solution to get your file watcher up and running smoothly.

The Initial Setup

You started with a command that functions flawlessly when executed directly in the console:

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This command watches your tailwind.config.js file and runs the npm run build-tailwind command anytime a modification is made. However, when attempting to run the same command from your package.json script section:

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You encounter a problem. When you execute:

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The watcher doesn't respond to the changes you make in the tailwind.config.js file. Instead of the expected output, everything appears to be static in the console.

Diagnosing the Issue

After some investigation, it turns out that the problem was tied to the usage of single quotes in the command when run on Windows 10. This is an important detail because some command-line tools can handle quotes differently depending on the operating system.

The Solution

To resolve this peculiar issue with quote handling on Windows, you need to switch from single quotes to double quotes. Here’s the corrected package.json entry:

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Why Does This Work?

Quote Handling: Windows command prompt and many terminal applications interpret quotes differently. Using double quotes allows the command to be correctly parsed and executed by npm.

Consistency: By ensuring the command is interpreted uniformly, the chmod command can properly watch the specified file and trigger the associated build command as intended.

Conclusion

Now that the changes have been made, you can try running your modified npm run watch-tailwind command again:

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This time, you should see the proper output when you modify the tailwind.config.js file. You'll witness that changes are correctly detected, and your build command (npm run build-tailwind) executes seamlessly.

Final Thoughts

File watching can be a significant part of optimizing your development workflow, especially with tools like Chokidar in the mix. Ensuring your command syntax is compatible with your operating system can save you time and frustration. Remember, when in doubt about why something isn’t running as expected, check your quotes!

Don’t forget to share this post with fellow developers who might encounter similar issues!