System.js vs Webpacker

Overview

Webpacker

Stacks204

Followers48

Votes0

GitHub Stars5.3K

Forks1.5K

System.js

Stacks28

Followers10

Votes2

GitHub Stars13.1K

Forks1.1K

System.js vs Webpacker: What are the differences?

What is System.js? Dynamic ES module loader. It is a Universal Module Loader for JavaScript. If you've used RequireJs or a CommonJs bundler in the past, you have probably created modules.Configurable module loader enabling dynamic ES module workflows in browsers and NodeJS.

What is Webpacker? Use Webpack to manage app-like JavaScript modules in Rails (by Rails). Webpacker makes it easy to use the JavaScript preprocessor and bundler Webpack to manage application-like JavaScript in Rails. It coexists with the asset pipeline, as the purpose is only to use Webpack for app-like JavaScript, not images, css, or even JavaScript Sprinkles (that all continues to live in app/assets).

System.js and Webpacker belong to "JS Build Tools / JS Task Runners" category of the tech stack.

System.js and Webpacker are both open source tools. It seems that System.js with 9.75K GitHub stars and 852 forks on GitHub has more adoption than Webpacker with 4.34K GitHub stars and 927 GitHub forks.

According to the StackShare community, Webpacker has a broader approval, being mentioned in 10 company stacks & 15 developers stacks; compared to System.js, which is listed in 3 company stacks and 4 developer stacks.

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Advice on Webpacker, System.js

Aleksandr

Contract Software Engineer - Microsoft at Microsoft-365

Dec 23, 2019

Decided

Why migrated?

I could define the next points why we have to migrate:

Decrease build time of our application. (It was the main cause).
Also jspm install takes much more time than npm install.
Many config files for SystemJS and JSPM. For Webpack you can use just one main config file, and you can use some separate config files for specific builds using inheritance and merge them.

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Comments

Detailed Comparison

Webpacker	System.js
Webpacker makes it easy to use the JavaScript preprocessor and bundler Webpack to manage application-like JavaScript in Rails. It coexists with the asset pipeline, as the purpose is only to use Webpack for app-like JavaScript, not images, css, or even JavaScript Sprinkles (that all continues to live in app/assets).	It is a Universal Module Loader for JavaScript. If you've used RequireJs or a CommonJs bundler in the past, you have probably created modules.Configurable module loader enabling dynamic ES module workflows in browsers and NodeJS.
-	Compatibility with Webpack;Polyfills for Older Browsers;Loader Extensions
Statistics
GitHub Stars 5.3K	GitHub Stars 13.1K
GitHub Forks 1.5K	GitHub Forks 1.1K
Stacks 204	Stacks 28
Followers 48	Followers 10
Votes 0	Votes 2
Pros & Cons
No community feedback yet	Pros 1 Great plugin system 1 Loads anything trough AMD with the right plugin
Integrations
Rails Webpack	AngularJS Node.js jQuery

What are some alternatives to Webpacker, System.js?

gulp

Build system automating tasks: minification and copying of all JavaScript files, static images. More capable of watching files to automatically rerun the task when a file changes.

Webpack

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders" modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

Grunt

The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting, etc, the easier your job becomes. After you've configured it, a task runner can do most of that mundane work for you—and your team—with basically zero effort.

Brunch

Brunch is an assembler for HTML5 applications. It's agnostic to frameworks, libraries, programming, stylesheet & templating languages and backend technology.

Parcel

Parcel is a web application bundler, differentiated by its developer experience. It offers blazing fast performance utilizing multicore processing, and requires zero configuration.

rollup

It is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD.

Backpack

Backpack is minimalistic build system for Node.js. Inspired by Facebook's create-react-app, Zeit's Next.js, and Remy's Nodemon, Backpack lets you create modern Node.js apps and services with zero configuration. Backpack handles all the file-watching, live-reloading, transpiling, and bundling, so you don't have to.

Vite

It is an opinionated web dev build tool that serves your code via native ES Module imports during dev and bundles it with Rollup for production.

Pingy CLI

Gulp and Grunt and other heavyweight build tools are great for complicated build workflows. Sometimes you want something simpler that doesn't take lots of configuration to get up and running. That's Pingy CLI.

Microbundle

Zero-configuration bundler for tiny modules, powered by Rollup.

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