Easiest Way to Use node-sass Watch Option with yarn start

Discover how to run `node-sass` with yarn in one console seamlessly, including easy setup with the npm-run-all package. Perfect for developers looking to streamline their workflow!
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Simplifying Sass Compilation and Project Startup with Yarn

If you’re a developer using Sass in your projects, you may have encountered a common scenario: wanting to simultaneously compile your Sass files and run your project with yarn start. You might have tried using yarn build:sass, which compiles your Sass into CSS, but it doesn’t automatically start your project. This can be frustrating, especially when you want to see your changes in real-time while developing. Luckily, there’s a straightforward solution to this problem!

The Problem: Running Sass and Your Project Together

When you run the following command in your command line to compile Sass:

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It triggers the Sass watch process, which will update your CSS files as you make changes. However, it does not start your project. When you attempt to run yarn start, the two processes (Sass compilation and project startup) cannot run in tandem in the same console window. This means you end up having to switch between commands, which can slow down your development process.

The Solution: Using npm-run-all

The good news is that there’s a handy package called npm-run-all that allows you to run multiple npm scripts in parallel, which solves the issue of running both the Sass watcher and the project startup together.

Step 1: Install npm-run-all

Before you can make use of npm-run-all, you’ll need to install it. Run the following command in your terminal:

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Step 2: Update Your Scripts

Once you have npm-run-all installed, you can update your package.json scripts as follows:

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Breakdown of the Scripts:

build:sass: This compiles your Sass from the src directory and outputs it to the dist directory.

watch:sass: This script first builds your Sass and then continues to watch for changes, recompiling automatically.

start: This command runs your React application with the specified PUBLIC_URL.

start:dev: The new script using npm-run-all allows both the Sass watcher and project startup to run simultaneously.

Running Your Project

Now, to run both your Sass watcher and your project together, simply execute:

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This command will ensure that as you modify your Sass files, your project will also be up and running, reflecting your changes instantly without needing to switch back and forth between commands.

Conclusion

By utilizing npm-run-all, you can streamline your development workflow significantly. Running the Sass compiler alongside your project not only saves time but also increases productivity as you can focus more on developing and less on command management. Give this method a try, and enjoy a more efficient way to work with Sass and Yarn in your projects!

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