Rollup

Rollup is a flexible JavaScript bundler that can be used to create custom build workflows. It is a good choice for experienced developers or projects with specific requirements.

Here is a simple example of how to use Rollup to bundle your code:

1# Install Rollup
2npm install rollup
3
4# Create a rollup.config.js file with the following contents
5import rollup from '@rollup/plugin-commonjs';
6
7export default {
8  input: 'src/index.js',
9  output: {
10    file: 'dist/index.js',
11    format: 'cjs'
12  },
13  plugins: [
14    rollup()
15  ]
16};
17
18# Bundle your code
19rollup -c rollup.config.js
20
21# Output file
22dist/index.js

This will create a new dist directory containing a bundled JavaScript file called index.js. You can then open this file in a web browser to view your application.

Rollup can also be used to bundle more complex projects. For example, you can use Rollup to bundle multiple JavaScript files into a single file, or to bundle JavaScript and CSS files into a single file. You can also use Rollup to create custom build workflows, such as bundling code for different environments or creating libraries.

Here is an example of how to bundle multiple JavaScript files into a single file with Rollup:

1# Install Rollup
2npm install rollup
3
4# Create a rollup.config.js file with the following contents
5import rollup from '@rollup/plugin-commonjs';
6
7export default {
8  input: ['src/index.js', 'src/main.js'],
9  output: {
10    file: 'dist/index.js',
11    format: 'cjs'
12  },
13  plugins: [
14    rollup()
15  ]
16};
17
18# Bundle your code
19rollup -c rollup.config.js
20
21# Output file
22dist/index.js

This will create a new dist directory containing a bundled JavaScript file called index.js that contains the code from both the index.js and main.js files.

Rollup is a powerful and versatile build tool that can be used to bundle a wide range of web applications. It is a good choice for experienced developers or projects with specific requirements.

Here are some additional features of Rollup:

• Flexibility: Rollup is very flexible and can be used to create custom build workflows.
• Powerful: Rollup is a powerful JavaScript bundler and can bundle large codebases in seconds.
• Small bundle size: Rollup produces small bundles. This can improve the loading speed of your web application.
• Wide range of supported assets: Rollup can bundle a wide range of assets, including JavaScript, CSS, HTML, images, and fonts.
• Large community: Rollup has a large and active community. This means that there are many resources available to help you learn how to use Rollup and to get help if you need it.