Working with LESS in Webpack

Let's now learn how to work with the LESS preprocessor. To do this, we first need to install LESS itself:

npm install less --save-dev

Then the corresponding loader:

npm install less-loader --save-dev

Now let's import several LESS files to the entry point:

import './styles1.less';
import './styles2.less';

Let's configure Webpack to transform LESS code into CSS:

export default {
	entry: './src/index.js',
	rules: [
		{
			test: /\.less$/i,
			use: [
				'style-loader',
				'css-loader',
				'less-loader',
			],
		},
	],
};

Now let's configure Webpack so that the transformed CSS is collected into one common bundle:

export default {
	entry: './src/index.js',
	plugins: [new MiniCssExtractPlugin()],
	module: {
		rules: [
			{
				test: /\.less$/i,
				use: [
					MiniCssExtractPlugin.loader,
					'css-loader',
					'less-loader',
				],
			},
		],
	},
	
};

Include some LESS files in your entry point. Compile them into CSS.