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JSPM
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JSPM vs npm: What are the differences?

What is JSPM? Frictionless browser package management. It is a package manager for the SystemJS universal module loader, built on top of the dynamic ES6 module loader. You can load npm packages in modern browsers with the native browser ES module loader.

What is npm? The package manager for JavaScript. npm is the command-line interface to the npm ecosystem. It is battle-tested, surprisingly flexible, and used by hundreds of thousands of JavaScript developers every day.

JSPM can be classified as a tool in the "Package Managers" category, while npm is grouped under "Front End Package Manager".

npm is an open source tool with 17.2K GitHub stars and 3.17K GitHub forks. Here's a link to npm's open source repository on GitHub.

reddit, Instacart, and Coursera are some of the popular companies that use npm, whereas JSPM is used by Permission Click, Sharp Auction Engine, and Flutaro. npm has a broader approval, being mentioned in 3590 company stacks & 13518 developers stacks; compared to JSPM, which is listed in 5 company stacks and 6 developer stacks.

- No public GitHub repository available -

What is JSPM?

It is a package manager for the SystemJS universal module loader, built on top of the dynamic ES6 module loader. You can load npm packages in modern browsers with the native browser ES module loader.

What is npm?

npm is the command-line interface to the npm ecosystem. It is battle-tested, surprisingly flexible, and used by hundreds of thousands of JavaScript developers every day.
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Why do developers choose JSPM?
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        What are some alternatives to JSPM and npm?
        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.
        Bower
        Bower is a package manager for the web. It offers a generic, unopinionated solution to the problem of front-end package management, while exposing the package dependency model via an API that can be consumed by a more opinionated build stack. There are no system wide dependencies, no dependencies are shared between different apps, and the dependency tree is flat.
        Composer
        It is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.
        Homebrew
        Homebrew installs the stuff you need that Apple didn’t. Homebrew installs packages to their own directory and then symlinks their files into /usr/local.
        NuGet
        A free and open-source package manager designed for the Microsoft development platform. It is also distributed as a Visual Studio extension.
        See all alternatives
        Decisions about JSPM and npm
        Tim Abbott
        Tim Abbott
        Founder at Zulip · | 5 upvotes · 17.1K views
        atZulipZulip
        Yarn
        Yarn
        npm
        npm
        Node.js
        Node.js

        I have mixed feelings on the Yarn/npm/Node.js ecosystem. We use it for Zulip, because you basically have to in order to have a modern JavaScript toolchain. And I like that Yarn lets us pin dependency versions out of the box for predictability in our production releases; we have to do significant work for the Python version of this feature.

        But one also deals with broken third-party dependencies uploaded to npm way too often (even ignoring the malicious packages issues that have gotten a lot of press of late). And one mostly has to use nvm in order to pin a specific version of node itself in a maintainable way, and nvm is a mess.

        See more
        Russel Werner
        Russel Werner
        Lead Engineer at StackShare · | 5 upvotes · 10.6K views
        atStackShareStackShare
        Yarn
        Yarn
        npm
        npm

        We use Yarn because at the time we decided to adopt it, npm had some missing features and issues. We like the speed and determinism provided by Yarn. We could probably use npm at this point, but we have no real reason to switch from Yarn. If you have a convincing argument to switch from npm to Yarn please leave a comment on this decision!

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        Johnny Bell
        Johnny Bell
        Senior Software Engineer at StackShare · | 17 upvotes · 517K views
        Webpack
        Webpack
        Node.js
        Node.js
        Yarn
        Yarn
        npm
        npm
        Babel
        Babel
        Prettier
        Prettier
        ESLint
        ESLint
        #ES6
        #ES5

        So when starting a new project you generally have your go to tools to get your site up and running locally, and some scripts to build out a production version of your site. Create React App is great for that, however for my projects I feel as though there is to much bloat in Create React App and if I use it, then I'm tied to React, which I love but if I want to switch it up to Vue or something I want that flexibility.

        So to start everything up and running I clone my personal Webpack boilerplate - This is still in Webpack 3, and does need some updating but gets the job done for now. So given the name of the repo you may have guessed that yes I am using Webpack as my bundler I use Webpack because it is so powerful, and even though it has a steep learning curve once you get it, its amazing.

        The next thing I do is make sure my machine has Node.js configured and the right version installed then run Yarn. I decided to use Yarn because when I was building out this project npm had some shortcomings such as no .lock file. I could probably move from Yarn to npm but I don't really see any point really.

        I use Babel to transpile all of my #ES6 to #ES5 so the browser can read it, I love Babel and to be honest haven't looked up any other transpilers because Babel is amazing.

        Finally when developing I have Prettier setup to make sure all my code is clean and uniform across all my JS files, and ESLint to make sure I catch any errors or code that could be optimized.

        I'm really happy with this stack for my local env setup, and I'll probably stick with it for a while.

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        Mark Nelissen
        Mark Nelissen
        CTO at Gemsotec bvba · | 4 upvotes · 2.9K views
        React
        React
        TypeScript
        TypeScript
        Yarn
        Yarn
        npm
        npm

        I use npm because I also mainly use React and TypeScript. Since several typings (from DefinitelyTyped) depend on the React typings, Yarn tends to mess up which leads to duplicate libraries present (different versions of the same type definition), which hinders the Typescript compiler. Npm always resolves to a single version per transitive dependency. At least that's my experience with both.

        See more
        Jason Barry
        Jason Barry
        Cofounder at FeaturePeek · | 4 upvotes · 17.7K views
        atFeaturePeekFeaturePeek
        Flow (JS)
        Flow (JS)
        TypeScript
        TypeScript
        React
        React
        JavaScript
        JavaScript
        Sublime Text
        Sublime Text
        Babel
        Babel
        Yarn
        Yarn
        npm
        npm
        #Frontend

        I think our #Frontend stack is pretty standard – but we have taken some deviations from a typical modern stack:

        • Flow (JS) instead of TypeScript. Flow was an easy choice 2+ years ago, as both flow and React were (and still are) maintained by Facebook. Today, it seems that the JavaScript community has settled on TypeScript as the winner. For new projects, I'd choose TS, but I don't see the point in migrating an existing project from flowtype to TS, when the end result will be roughly the same. Sure, memory usage is a bit high, and every now and then I have to kill some zombie processes, but our text editors (Sublime Text), CI scripts, and Babel are already set up to take advantage of the type safety that flow offers. When/if the React team writes React itself in TS, then I'll take a closer look – until then, flow works for us.

        • Yarn instead of npm. When yarn debuted, we never looked back. Now npm has pretty much caught up with speed and lockfiles, but yarn gives me confidence that my dependency installs are deterministic. Really interested in the plug-n-play (PnP) feature that removes the need for a node_modules folder, but haven't implemented this yet.

        See more
        Node.js
        Node.js
        npm
        npm
        Yarn
        Yarn

        From a StackShare Community member: “I’m a freelance web developer (I mostly use Node.js) and for future projects I’m debating between npm or Yarn as my default package manager. I’m a minimalist so I hate installing software if I don’t need to- in this case that would be Yarn. For those who made the switch from npm to Yarn, what benefits have you noticed? For those who stuck with npm, are you happy you with it?"

        See more
        Interest over time
        Reviews of JSPM and npm
        No reviews found
        How developers use JSPM and npm
        Avatar of lispur
        lispur uses npmnpm

        Utilize npm private module to package shared library for different React / React Native clients. Shareable code goes here. Basically deliver Redux Store with Firebase integration and business logic in a library. Each React app utilizes this while delivering a device/target specific UI.

        Avatar of Refractal
        Refractal uses npmnpm

        If you're using Node or Gulp, you can't help but use NPM in some form or another. Fortunately that's never a bad thing with the massive package repository and glowing ecosystem making it a breeze to work with.

        Avatar of Oomba
        Oomba uses npmnpm

        We manages all of our packages, including Angular JS through npm. It is a very quick way of downloading / installing packages into your project.

        Avatar of Thibault Maekelbergh
        Thibault Maekelbergh uses npmnpm

        Module is published as bpost on the npm registry. Tasks for the module are also defined as npm run tasks with commit hooks for git

        Avatar of Andrew Gatenby
        Andrew Gatenby uses npmnpm

        It's the front-end version of Composer, so is pretty essential to pull in packages that can be tracked and kept up to date.

        How much does JSPM cost?
        How much does npm cost?
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