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UglifyJS

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Decisions about UglifyJS and Webpack
Aleksandr Filatov
Contract Software Engineer - Microsoft · | 4 upvotes · 133.4K 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 UglifyJS
Pros of Webpack
  • 0
    Great for javascript minification
  • 308
    Most powerful bundler
  • 182
    Built-in dev server with livereload
  • 142
    Can handle all types of assets
  • 87
    Easy configuration
  • 21
    Laravel-mix
  • 4
    Overengineered, Underdeveloped
  • 2
    Webpack-Encore
  • 2
    Makes it easy to bundle static assets
  • 1
    Redundant
  • 1
    Better support in Browser Dev-Tools

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Cons of UglifyJS
Cons of Webpack
    Be the first to leave a con
    • 12
      Hard to configure
    • 3
      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

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    What is UglifyJS?

    This package implements a general-purpose JavaScript parser/compressor/beautifier toolkit. It is developed on NodeJS, but it should work on any JavaScript platform supporting the CommonJS module system (and if your platform of choice doesn’t support CommonJS, you can easily implement it, or discard the exports.* lines from UglifyJS sources).

    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.

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    What tools integrate with UglifyJS?
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    What are some alternatives to UglifyJS and Webpack?
    Closure Compiler
    The Closure Compiler is a tool for making JavaScript download and run faster. It is a true compiler for JavaScript. Instead of compiling from a source language to machine code, it compiles from JavaScript to better JavaScript. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls.
    Modernizr
    It’s a collection of superfast tests or detects as we like to call them which run as your web page loads, then you can use the results to tailor the experience to the user. It tells you what HTML, CSS and JavaScript features the user’s browser has to offer.
    Modernizr
    It’s a collection of superfast tests or detects as we like to call them which run as your web page loads, then you can use the results to tailor the experience to the user. It tells you what HTML, CSS and JavaScript features the user’s browser has to offer.
    Lodash
    A JavaScript utility library delivering consistency, modularity, performance, & extras. It provides utility functions for common programming tasks using the functional programming paradigm.
    fancybox
    It is a tool that offers a nice and elegant way to add zooming functionality for images, html content and multi-media on your webpages. It is built on the top of the popular JavaScript framework jQuery and is both easy to implement and a snap to customize.
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