Sunday 21 October 2018

Using NPM to compile SCSS files

You can use JS Node to compile a SASS file (.SCSS) to a CSS file. To compile a SASS file into CSS using NPM, you need to first install this on your system by using this command.

npm install -g scss-compile

NOTE - make sure you have NODE JS on your system.

Once successful, you will see:



Now you are ready to use a command line to compile a SCSS file into a CSS file.  Assume we have this HTML in a directory named  SampleProject.

HTML File

<html>
    
<head>
    <link rel="stylesheet" type="text/css" href="css/style.css">
    </head>    
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>

SCSS file

Under the SampleProject folder, we have a folder named css.  In this folder , there is a file named style.scss, as shown here: 


The following code represents the style.scss file. 

$font-stack:    Helvetica, sans-serif;
$primary-color: #333;

body {
  font: 100% $font-stack;
  color: $primary-color;
}

Compile the SCSS into a CSS

To compile this SCSS into a CSS file using NPM, you need to create a file named package.json in the SampleProject folder. This package defines the command we need to convert this file. Here is the code for this JSON file. 

{
  "devDependencies": {
    "node-sass": "^6.4.1"
  },

  "scripts": {
    "scss-compile": "node-sass -o css css/style.scss"
  }
}

Now open the command line to the  SampleProject folder and enter this command: 

 npm run scss-compile

If successful, you will see this message in the command prompt. 



There you go, now you have successfully converted the SCSS into a CSS file. 




Hope this helps.