The Three Pillars of JavaScript Bloat

(43081j.com)

120 points | by onlyspaceghost 4 hours ago

18 comments

  • rtpg 1 hour ago
    I think on the first point, we have to start calling out authors of packages which (IMO) have built out these deptrees to their own subpackages basically entirely for the purpose of getting high download counts on their github account

    Like seriously... at 50 million downloads maybe you should vendor some shit in.

    Packages like this which have _7 lines of code_ should not exist! The metadata of the lockfile is bigger than the minified version of this code!

    At one point in the past like 5% of create-react-app's dep list was all from one author who had built out their own little depgraph in a library they controlled. That person also included download counts on their Github page. They have since "fixed" the main entrypoint to the rats nest though, thankfully.

    https://www.npmjs.com/package/has-symbols

    https://www.npmjs.com/package/is-string

    https://github.com/ljharb

    • matheusmoreira 1 hour ago
      > entirely for the purpose of getting high download counts on their github account

      Is this an ego thing or are people actually reaping benefits from this?

      Anthropic recently offered free Claude to open source maintainers of repositories with over X stars or over Y downloads on npm. I suppose it is entirely possible that these download statistics translate into financial gain...

      • martijnvds 49 minutes ago
        I've seen people brag about it in their resumes, so I assume it helps them find (better paying?) work.
    • h4ch1 1 hour ago
      I remember seeing this one guy who infiltrated some gh org, and then started adding his own packages to their dependencies or something to pad up his resume/star count.

      Really escapes me who it was.

    • CoderLuii 59 minutes ago
      from a security perspective this is even worse than it looks. every one of those micro packages is an attack surface. we just saw the trivy supply chain get compromised today and thats a security tool. now imagine how easy it is to slip something into a 7 line package that nobody audits because "its just a utility." the download count incentive makes it actively dangerous because it encourages more packages not fewer.
    • hinkley 1 hour ago
      Hat tip to Sindre who has fifty bagillion packages but few of them depend on more than one of his other packages.
    • stephenr 54 minutes ago
      As usual, he's copying someone else who's been doing this for years:

      https://www.npmjs.com/package/is-number - and then look and see shit like is odd, is even (yes two separate packages because who can possibly remember how to get/compare the negated value of a boolean??)

      Honestly for how much attention JavaScript has gotten in the last 15 years it's ridiculous how shit it's type system really is.

      The only type related "improvement" was adding the class keyword because apparently the same people who don't understand "% 2" also don't understand prototypal inheritance.

      • zahlman 6 minutes ago
        To be fair, prototypal inheritance is relatively uncommon language design. I'd rank it as considerably harder to understand than the % operator.
  • andai 1 hour ago
    Great article, but I think these are all marginal.

    The main cause of bloat is not polyfills or atomic packages. The cause of bloat is bloat!

    I love this quote by Antoine de Saint-Exupéry (author of the Little Prince):

    "Perfection is achieved, not when there is nothing left to add, but nothing to take away."

    Most software is not written like that. It's not asking "how can we make this more elegant?" It's asking "what's the easiest way to add more stuff?"

    The answer is `npm i more-stuff`.

    • cwnyth 1 hour ago
      Cf. Vonnegut's rule #4 of good writing:

      > Every sentence must do one of two things—reveal character or advance the action.

      Or Quintilian's praise of Demosthenes and Cicero: "To Demosthenes nothing can be added, but from Cicero nothing can be taken away."

      • cobbzilla 53 minutes ago
        Is there no room for describing the setting? Must every utterance that sets the atmosphere also advance the plot or reveal character? Is there no room for mood?
        • hombre_fatal 41 minutes ago
          > Is there no room for describing the setting? Is there no room for mood?

          You mean the character of a place?

  • auxiliarymoose 1 hour ago
    I really think writing dependency-free JavaScript is the way to go nowadays. The standard library in JS/CSS is great. So are static analysis (TypeScript can check JSDoc), imports (ES modules), UI (web components), etc.

    People keep telling me the approach I am taking won't scale or will be hard to maintain, yet my experience has been that things stay simple and easy to change in a way I haven't experienced in dependency-heavy projects.

    • anematode 6 minutes ago
      This is absolutely the way to go
    • CoderLuii 59 minutes ago
      been doing something similar. the projects ive been building recently use as few dependencies as possible and honestly the maintenance burden dropped significantly. when something breaks you actually know where to look instead of digging through 15 layers of node_modules. people said the same thing to me about it not scaling but the opposite turned out to be true.
  • zdc1 3 hours ago
    A lot of this basically reads to me like hidden tech debt: people aren't updating their compilation targets to ESx, people aren't updating their packages, package authors aren't updating their implementations, etc.

    Ancient browser support is a thing, but ES5 has been supported everywhere for like 13 years now (as per https://caniuse.com/es5).

    • anematode 2 hours ago
      The desire to keep things compatible with even ES6, let alone ES5 and before, is utterly bizarre to me. Then you see folks who unironically want to maintain compatibility with node 0.4, in 2025, and realize it could be way worse....

      Ironically, what often happens is that developers configure Babel to transpile their code to some ancient version, the output is bloated (and slower to execute, since passes like regenerator have a lot of overhead), and then the website doesn't even work on the putatively supported ancient browsers because of the use of recent CSS properties or JS features that can't be polyfilled.

      I've even had a case at work where a polyfill caused the program to break. iirc it was a shitty polyfill of the exponentiation operator ** that didn't handle BigInt inputs.

      • Pxtl 1 hour ago
        It's just an excuse to not change things.
      • fragmede 2 hours ago
        Just how old an Android device in the developing world do you not want to support? Life's great at the forefront of technology, but there's a balancing act to be able to support older technology vs the bleeding edge.
        • anematode 2 hours ago
          I like the sentiment, but building a website that can actually function in that setting isn't a matter of mere polyfills. You need to cut out the insane bloat like React, Lottie, etc., and just write a simple website, at which point you don't really need polyfills anyway.

          In other words, if you're pulling in e.g. regenerator-runtime, you're already cutting out a substantial part of the users you're describing.

        • dfabulich 1 hour ago
          Android phones update to the latest version of Chrome for 7 years. As long as you're using browser features that are Baseline: Widely Available, you'll be using features that were working on the latest browsers in 2023; those features will work on Android 7.0 Nougat phones, released in 2016.

          Android Studio has a nifty little tool that tells you what percentage of users are on what versions of Android. 99.2% of users are on Android 7 or later. I predict that next year, a similar percentage of users will be on Android 8 or later.

          • kennywinker 53 minutes ago
            3.9 billion android users, means that 0.8% is 31 million people - and for a very small number of developers most of their users will be from that slice. For most of them… yeah go ahead an assume your audience is running a reasonably up to date os
        • Dylan16807 1 hour ago
          A quick search tells me that firefox 143 from 6 months ago supported android 5 (Lollipop).

          So that's my cutoff.

      • hsbauauvhabzb 2 hours ago
        I’ve been very lost trying to understand the ecosystem between es versions , typescript and everything else. It ends up being a weird battle between seemingly unrelated things like require() vs import vs async when all I want to do is compile. All while I’m utterly confused by all the build tools, npm vs whatever other ones are out there, vite vs whatever other ones are out there, ‘oh babel? I’ve heard the name but no idea what it does’ ends up being my position on like 10 build packages.

        This isn’t the desire of people to build legacy support, it’s a broken, confusing and haphazard build system built on the corpses of other broken, confusing and haphazard build systems.

        • anematode 9 minutes ago
          Honestly, Vite is all you need. :) It's super flexible compared to the status quo of require vs. import etc. For example, I recently wanted to ship a WASM binary along with the JS rather than making it a separate download (to avoid having to deal with the failure case of the JS code loading and the WASM not fetching). All I had to do was import `a.wasm?url` and it did the base64 embedding and loading automatically.
        • CoderLuii 59 minutes ago
          this is exactly where i landed too. i build docker images that bundle node tooling and every time i think i understand the build system something changes. require vs import, cjs vs esm, babel vs swc vs esbuild, then half your dependencies use one format and half use the other. the worst part is when you containerize it because now you need it all to work in a clean linux environment with no cached state and suddenly half the assumptions break.
        • conartist6 1 hour ago
          Yes, yes to all of that, but there is still hope.
          • hsbauauvhabzb 56 minutes ago
            This fancy new build tool with emojis will fix it!
            • kennywinker 48 minutes ago
              This fancy new vibe coded build tool with emojis
    • userbinator 2 hours ago
      The newer version is often even more bloated. This whole article just reinforces my opinion of "WTF is wrong with JS developers" in general: a lot of mostly mindless trendchasing and reinventing wheels by making them square. Meanwhile, I look back at what was possible 2 decades ago with very little JS and see just how far things have degraded.
      • michaelchisari 2 hours ago
        A standard library can help, but js culture is not built in a way that lends to it the way a language like Go is.

        It would take a well-respected org pushing a standard library that has clear benefits over "package shopping."

  • burntoutgray 3 hours ago
    I have a single pillar, admittedly for in-house PWAs: Upgrade to the current version of Chrome then if your problem persists, we'll look into it.
  • IAmLiterallyAB 23 minutes ago
    For the old version support. Why not do some compile time #ifdef SUPPORT_ES3? That way library writers can support it and if the user doesn't need it they can disable it at compile time and all the legacy code will be removed
  • SachitRafa 1 hour ago
    The cross-realm argument for packages like is-string is the one I find hardest to dismiss, but even there the math doesn't add up. The number of projects actually passing values across realms is tiny, and those projects should be the ones pulling in cross-realm-safe utilities, not every downstream consumer of every package that ever considered it. The deeper problem with Pillar 2 is that atomic packages made sense as a philosophical argument but broke down the moment npm made it trivially easy to publish. The incentive was "publish everything, let consumers pick what they need" but the reality is consumers never audit their trees,they just install and forget. So the cost that was supposed to be opt-in became opt-out by default. The ponyfill problem feels most tractable to me. A simple automated check "does every LTS version of Node support this natively?" could catch most of these. The e18e CLI is a good start but it still requires someone to run it intentionally. I wonder if something like a Renovate-style bot that opens PRs to remove outdated ponyfills would move the needle faster than waiting for maintainers to notice.
  • est 1 hour ago
    More like a nodejs bloat rather than JS bloat.

    For personal objects I always prompt the AI to write JS directly, never introduce nodejs stack unless absolutely have to.

    Turns out you don't always need Nodejs/Reactto make a functional SPA.

    • kennywinker 44 minutes ago
      You’ve traded supply chain vulnerability for slop vulnerability.
  • il-b 1 hour ago
    The elephants in the room are react and webpack.
  • sheept 3 hours ago
    I wonder this means there could be a faster npm install tool that pulls from a registry of small utility packages that can be replaced with modern JS features, to skip installing them.
    • seniorsassycat 2 hours ago
      Not sure about faster, but you could do something with overrides, especially pnpm overrides since they can be configured with plugins. Build a list of packages that can be replaced with modern stubs.

      It couldn't inine them, but it could replace ponyfils with wrappers for native impls, and drop the fallback. It could provide simple modern implementations of is-string, and dedupe multiple major versions, tho that begs the question what breaking change lead to a new mv and why?

  • turtleyacht 3 hours ago
    It would be interesting to extend this project where opt-in folks submit a "telemetry of diffs," to track how certain dependencies needed to be extended, adapted, or patched; those special cases would be incorporated as future features and new regression tests.

    Someday, packages may just be "utility-shaped holes" in which are filled in and published on the fly. Package adoption could come from 80/20 agents [1] exploring these edges (security notwithstanding).

    However, as long as new packages inherit dependencies according to a human author's whims, that "voting" cycle has not yet been replaced.

    [1] https://news.ycombinator.com/item?id=47472694

  • stephenr 1 hour ago
    The primary cause of JS bloat is assuming you need JS or that customers want whatever you're using it to provide.

    For $client we've taken a very minimal approach to JavaScript, particularly on customer facing pages. An upcoming feature finally replaces the last jquery (+ plugin) dependent component on the sales page, with a custom implementation.

    That change shaved off ~100K (jquery plus a plugin removed) and for most projects now that probably seems like nothing.

    The sales page after the change is now just 160K of JS.

    The combination of not relying on JS for everything and preferring use-case-specific implementations where we do, means we aren't loading 5 libraries and using 1% of each.

    I'm aware that telling most js community "developers" to "write your own code" is tantamount to telling fish to "just breathe air".

    • CoderLuii 58 minutes ago
      160K total is impressive. most landing pages i see are shipping 2-3MB of js before the first paint. the "write your own code" approach gets laughed at but when you actually do it the result is faster, easier to debug, and you dont wake up one morning to find out one of your 200 dependencies got compromised.
  • skrtskrt 1 hour ago
    the fact that you can just redefine Map in a script is mind boggling
  • skydhash 3 hours ago
    Fantastic write up!

    And we're seeing rust happily going down the same path, especially with the micro packages.

    • CoderLuii 58 minutes ago
      the docker side of this is painful too. every extra dependency in any language means a bigger image, more layers to cache, more things that can break during a multi-arch build. ive been building images that are 4GB because of all the node and python tooling bundled in. micro packages make it worse because each one adds metadata overhead on top of the actual code.
    • cute_boi 1 hour ago
      Rust is different as there is no runtime.
      • onlyspaceghost 1 hour ago
        but it still increases compile time, attack surface area, bandwidth use, etc.
  • sipsi 1 hour ago
    i suggess jpeg.news dot com
  • leontloveless 2 hours ago
    [dead]
  • krmbzds 1 hour ago
    JavaScript bloat is downstream of low FED interest rates.