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Just

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Just vs Webpack: What are the differences?

Developers describe Just as "A library that organizes build tasks for your JS projects". It is a build task definition library. It stands on the shoulders of two excellent and well tested libraries: undertaker and yargs. It also provides what we call "stacks" to complete the workflow of building a repository. On the other hand, Webpack is detailed as "A bundler for javascript and friends". 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.

Just and Webpack can be primarily classified as "JS Build Tools / JS Task Runners" tools.

Just and Webpack are both open source tools. It seems that Webpack with 50.3K GitHub stars and 6.37K forks on GitHub has more adoption than Just with 1.31K GitHub stars and 44 GitHub forks.

Decisions about Just and Webpack
Aleksandr Filatov
Contract Software Engineer - Microsoft · | 4 upvotes · 174.1K views
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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We mostly use rollup to publish package onto NPM. For most all other use cases, we use the Meteor build tool (probably 99% of the time) for publishing packages. If you're using Node on FHIR you probably won't need to know rollup, unless you are somehow working on helping us publish front end user interface components using FHIR. That being said, we have been migrating away from Atmosphere package manager towards NPM. As we continue to migrate away, we may publish other NPM packages using rollup.

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Pros of Just
Pros of Webpack
    Be the first to leave a pro
    • 308
      Most powerful bundler
    • 182
      Built-in dev server with livereload
    • 142
      Can handle all types of assets
    • 87
      Easy configuration
    • 22
      Laravel-mix
    • 4
      Overengineered, Underdeveloped
    • 2
      Webpack-Encore
    • 2
      Makes it easy to bundle static assets
    • 1
      Better support in Browser Dev-Tools
    • 1
      Redundant

    Sign up to add or upvote prosMake informed product decisions

    Cons of Just
    Cons of Webpack
      Be the first to leave a con
      • 15
        Hard to configure
      • 5
        No clear direction
      • 2
        Spaghetti-Code out of the box
      • 2
        SystemJS integration is quite lackluster
      • 2
        Loader architecture is quite a mess (unreliable/buggy)
      • 2
        Fire and Forget mentality of Core-Developers

      Sign up to add or upvote consMake informed product decisions

      What is Just?

      It is a build task definition library. It stands on the shoulders of two excellent and well tested libraries: undertaker and yargs. It also provides what we call "stacks" to complete the workflow of building a repository.

      What is 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.

      Need advice about which tool to choose?Ask the StackShare community!

      What companies use Just?
      What companies use Webpack?
        No companies found
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        What tools integrate with Just?
        What tools integrate with Webpack?

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        What are some alternatives to Just and Webpack?
        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.
        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.
        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.
        Parcel
        Parcel is a web application bundler, differentiated by its developer experience. It offers blazing fast performance utilizing multicore processing, and requires zero configuration.
        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.
        See all alternatives