I think this issue transcends any language specific developer. This is business driven culture practices (it depends where you work). Although I have never come across a developer who actually pulls in a dependency per ticket, I suppose such a developer might exist.
It comes down to this, you and your team are maybe a handful of people. For instance you want to create a greenfield product that uses typescript, state machine architecture, and JSON schema, you have 6 months to do it. Several epics are created and over that time you expect a couple of new hires to join you. At this point I would install the Typescript compiler, I would not use Deno or write my own because... You can see why and that's a easy one, what about a state machine architecture? Okay this is a tough call, on the one hand overengineering is a real and present threat, xstate is great, tested to death, more so than I could in 12 months of unit and acceptance tests, sure some switch statement would work too but this isn't really my applications focus, plus xstate is well documented and we'll optimised, great for those new hires who will appreciate the autonamy. Okay schema driven forms, let's see, could I impliment this myself? Yes, are there any good solutions that work with typescript or better yet, generate from typescript? I don't know, let's timebox this for maybe 4 hours... 4 hours later (true story) mine mostly works.. the next day, there's a bug here, several weeks and new tests and bugs fixed, I decide to quickly Google a JSON schema form library, oh there are 3, and they are quite well contributed too, I use that, and improve my own so that one day I can atleast compare them.
Thanks for reading and please, we may agree to disagree (somewhat, because I think I agree with you depending on how my day is going 🏠🏚️).
If a library works and doesn’t negatively effect the production bundle, has a developer friendly API, integrates cleanly with your environments, and has a shallow learning curve go ahead, use it. When there are several options available but none of them provide those things, code your own implementation. Sounds nice but there really aren’t any hard and fast rules. As others have pointed out, it’s case by case. There doesn’t have to be a greenfield project though to implement something custom.
True story. I tried to use a plugin for a thing. It did what I wanted but found a nasty side effect that meant I couldn’t use it. I try another package that does a similar thing, but no way to integrate cleanly. I diagnose the bug and create an issue in the repo, author responds promptly. I dig in deeper while figuring out if I could just submit a pull request. I find a bunch of unnecessary code that would effect performance. Is it worth my time arguing with the author? I took a hour to learn how to develop the plugin and wrote one that did the same thing but with far less code, implementation was more performant. A few minutes later after testing it out, I npm publish and integrate the new plugin with my project. Done in less than two hours. Yes, I’ll be on the hook for maintenance, but there is hardly any to speak of. Oh well. In my opinion, we need more of that kind of mentality in web development, but in my experience engineers with a “can do it” attitude are few and far between.
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