webpack

Learn how to include Bootstrap in your project using Webpack 3.

Installing Bootstrap

Install bootstrap as a Node.js module using npm.

Importing JavaScript

Import Bootstrap's JavaScript by adding this line to your app's entry point (usually index.jsor app.js):

import 'bootstrap';

Alternatively, you may import plugins individually as needed:

import 'bootstrap/js/dist/util';
import 'bootstrap/js/dist/alert';
...

Bootstrap is dependent on jQuery and Popper , these are defined as peerDependencies, this means that you will have to make sure to add both of them to your package.jsonusing npm install --save jquery popper.js.

Importing Styles

Importing Precompiled Sass

To enjoy the full potential of Bootstrap and customize it to your needs, use the source files as a part of your project's bundling process.

First, create your own _custom.scssand use it to override the built-in custom variables . Then, use your main Sass file to import your custom variables, followed by Bootstrap:

@import "custom";
@import "~bootstrap/scss/bootstrap";

For Bootstrap to compile, make sure you install and use the required loaders: sass-loader , postcss-loader with Autoprefixer . With minimal setup, your webpack config should include this rule or similar:

  ...
  {
    test: /\.(scss)$/,
    use: [{
      loader: 'style-loader', // inject CSS to page
    }, {
      loader: 'css-loader', // translates CSS into CommonJS modules
    }, {
      loader: 'postcss-loader', // Run post css actions
      options: {
        plugins: function () { // post css plugins, can be exported to postcss.config.js
          return [
            require('precss'),
            require('autoprefixer')
          ];
        }
      }
    }, {
      loader: 'sass-loader' // compiles Sass to CSS
    }]
  },
  ...

Importing Compiled CSS

Alternatively, you may use Bootstrap's ready-to-use CSS by simply adding this line to your project's entry point:

import 'bootstrap/dist/css/bootstrap.min.css';

In this case you may use your existing rule for csswithout any special modifications to webpack config, except you don't need sass-loaderjust style-loader and css-loader .

  ...
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      }
    ]
  }
  ...