Comment on Big projects are ditching TypeScript… wtf? - The Code Report

scorpionix@feddit.de ⁨1⁩ ⁨year⁩ ago

• cactusupyourbutt@lemmy.world ⁨1⁩ ⁨year⁩ ago

  so he does all of this because he dislikes transpiling because supposedly it makes debugging etc harder? does he know about sourcemaps?

  he also says he doesnt like type information in his code, so he adda them as comments. the type information is still there, how is this an improvement?

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  • scorpionix@feddit.de ⁨1⁩ ⁨year⁩ ago

    The issue with transpiling is that the code that’s running in production is not necessarily the one that’s been tested. A source map doesn’t fix that.

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    • atheken@programming.dev ⁨1⁩ ⁨year⁩ ago

      I loathe this line of reasoning. It’s like saying “unless you wrote assembly, compiling your code could change what it does.”

      Guess what, the CPU reorders/ellides assembly, too! You can’t trust anything!

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      • pivot_root@lemmy.world ⁨1⁩ ⁨year⁩ ago

        Haha, what is this, the 90s?

        Assembled instructions aren’t even the lowest non-hardware stage in instruction execution. There’s proprietary microcode sitting a level below your typical x86 ISA.

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    • pivot_root@lemmy.world ⁨1⁩ ⁨year⁩ ago

      Unless someone is using some language extensions, transpiling from TS to an ECMAScript module using the ESNext target merely drops the type annotations.

      If not running the exact same code being developed is an issue, it’s an easy fix.

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    • Miaou@jlai.lu ⁨1⁩ ⁨year⁩ ago

      Ugh? Of course it is. Why shouldn’t it be?

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      • scorpionix@feddit.de ⁨1⁩ ⁨year⁩ ago

        Because Browsers can’t run Typescript, they run JavaScript. That’s why the intermediate conversion step isneededd.

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• iFarmGolems@lemmy.world ⁨1⁩ ⁨year⁩ ago

  I do this daily and believe me when I say that I’d trade my kidney for the ability to use TS natively. This looks good on paper but jsdoc notation has lots of flaws and you literally can’t do some things with it. Also, it doesn’t check if the function actually does the thing you described so it needs manual review every time it’s changed.

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• plistig@feddit.de ⁨1⁩ ⁨year⁩ ago

  That approach was mentioned in the video.

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