why-did-you-render VS craco

Check out why-did-you-render. It may tell you some more information.

It's a combination of many things, but imo one of the worst is all the footguns regarding state and the rerenders they cause

https://emnudge.dev/blog/react-hostage

It's so easy, that we monkey patch react to debug it https://github.com/welldone-software/why-did-you-render

Plus the vdom... Isn't great, the bundle size puts react at an inherit disadvantage, and the community has a knack for over reliance on bloated packages

When we implemented the MVP of the fintech app, we had a quite complicated form. At that time, I was still young and inexperienced. And eventually, we realized that our project was slowing down. We had to spend additional hours figuring out the reason. We had many unnecessary re-renders because we ignored basic rules related to props in React. I wanted to do everything possible to avoid such situations in the future. So, I added to the project linters like this and an additional starting configuration to package.json to run why-did-you-render. In short, this plugin issues a warning if something is re-rendered unnecessarily and suggests how to avoid it. Also, we included running Lighthouse in headless mode. Some people say that premature optimizations are bad, but for me, it's a principle: do it right from the start.

maybe somethin like https://github.com/welldone-software/why-did-you-render

This might help you out a bit.

I had some 'fun' figuring out how to deal with not going through create-react-app without doing a full eject, got something barely working ... and discovered https://craco.js.org/ already existed and did precisely what I'd part-implemented except better.

On the upside, by that point I knew the CRA codebase well enough to predict what it would do even in edge cases, and CRACO's implementation was immediately comprehensible, and none of my colleagues had to try and understand my half-arsed NIH version.

(avoiding being in any of this situation in the first place would likely have been preferable, but given where things were when I landed on the project in question that would've required a TARDIS)

If you initiated your React application using create-react-app, leverage @craco/craco to override your webpack configuration.

Ejecting a React app is a bad idea because our application will lose all the React configurations and will not benefit from the CRA updates. Some solutions for ejecting our application include using packages like react-app-rewired or rewire. You can also use CRACO to eject your React application, but it needs you to install additional plugins.

So, instead of entirely managing these configuration files, teams took to utilizing tools such as Craco to override configurations. These tools also come with their limitations: they were not updated as quickly as CRA, so there was always a lag in implementing new features, and they added an extra layer of complexity to existing tools through overrides and additional tools.

I am not much of a fan of CRA myself but I am very much glad that https://craco.js.org exists - so far it's handled my needs for tweaking CRA behaviour in situations where "eject" didn't seem like a good route to take.

Mostly tbh to stop the freaking thing spawning inotify watchers for the entire contents of node_modules - I don't mind having to do a manual restart when I've changed dependencies and I definitely -do- mind having it eat a shedload of my user's inotify kernel allocation. (I know you can up the allocation, that's not the point, why are you on my lawn? :)

As I mentioned, in our case, the perfect tool for this job is CRACO. It will let us simply overwrite CRA’s configuration without ejecting.

Create react app + Craco

Or I could use Craco with Craco-less. Craco 6+ doesn't work with 5+ versions of react-scripts. I know I could use yarn instead of NPM which doesn't stop the installation of craco, but it can't be the solution. We can't scrap the project and restart. Further, Craco 7-alpha installs but then craco-less doesn't.

If you want to customize the webpack configuration, you either need to eject, or to work against the package (with yarn patch, forking react-scripts, or using CRACO which is the easiest). But none of them are officially maintained by the CRA team.