Webpack - sass 적용된 webpack.config.js 파일

// can't use ecma script module. use only common.js
console.log("module >>> ", module);
const path = require('path');

// minimum option
module.exports = {
    entry: './src/index.js',
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, './dist'),
        /**
         * publicPath
         * under version 4: publicPath is empty('').
         * over version 4: publicPath is auto
         * 
         * can use list
         *      1. 'dist/'
         *      2. 'https://image.oliveyoung.co.kr/uploads/contents/202410/25oyDay/pc_visual.jpg'
         */
        publicPath: 'dist/'
    },
    mode: 'none',
    module: {
        /**
         * webpack: I don't know what that menas 'import Kiwi...'
         * me: thank you for asking, If you don't know somethig, you should check out the rules.
         * webpack: perfect
         */
        rules: [
            {
                test: /\.(png|jpg)$/,
                /**
                 * asset/inline  :bake image into base64. could be larger file size(more better)
                 * asset/resource: request image each of them. cost of call is larger
                 */
                type: 'asset',
                parser: {
                    dataUrlCondition: {
                        maxSize: 3 * 1024 // 3kilobyte
                    }
                }
            },
            {
                test: /\.txt$/,
                type: 'asset/source'
            },
            {
                // loader should be installed explicitly
                test: /\.css$/,
                use: [
                    'style-loader', 'css-loader'
                ]
            },
            {
                test: /\.scss$/,
                // webpack invoke right to left in array
                // 
                use: [
                    'style-loader', 'css-loader', 'sass-loader'
                ]
            }
        ]
    }
}

 

 

npm install style-loader css-lodaer sass sass-loader --save-dev

 

$font-size: 20px;
$button-background-color: green;
$button-font-color: white;
$text-font-color: red;

.hello-world-button {
    font-size: $font-size;
    padding: 7px 15px;
    background: $button-background-color;
    color: $button-font-color;
    outline: none;
}

.hello-world-text {
    color: $text-font-color;
    font-weight: bold;
}