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What is the preferred `Input` usage style: controlled or uncontrolled? How can I decide?

I think that controlled is useful in most simple cases and uncontrolled for complicated scenarios.

Reasons to have both are same as in react : <https://reactjs.org/docs/uncontrolled-components.html>
```Since an uncontrolled component keeps the source of truth in the DOM, it is sometimes easier to integrate React and non-React code when using uncontrolled components. It can also be slightly less code if you want to be quick and dirty. Otherwise, you should usually use controlled components.```


If you're implementing a new component you can make "controlled" only for the beginning until you see a need to have it uncontrolled.

So at least in my MDC use case, it's just the opposite: Easier to integrate in controlled mode. I'll be following that path until YAGNI evaluates to `false`.