What are the benefits of using Proxy objects for function calls?

The cool thing about Proxies is their ability to intercept not just function calls, but any property access. So if you have a weird delete method in an ORM that you can't modify, a Proxy lets you add logging or other functionality without losing the original behavior. Wrapping a function won't give you that level of control over the entire object's properties. It’s great for handling actions you can’t tweak directly.

I tried using Proxies to create a state management system, and it was a game changer. They let you observe changes in object states seamlessly, such as when values get updated. This is particularly useful for libraries where you need to track changes without intrusive modifications. They’re powerful for building reactive applications, even if they might seem complex at first.

Proxies are super handy for modifying how objects behave without altering the original object's code. For example, you can use a Proxy to track function calls or log specific actions without changing the underlying function. They're especially useful in testing, as they can mimic and intercept behaviors easily. Libraries like Immer.js use them to manage state changes efficiently.

Using Proxies can get a bit messy if you're just trying to add behavior to functions. If your goal is primarily to modify function calls, simple function wrappers might suffice. But if you're ever needing to capture properties dynamically or handle a wide range of function calls, Proxies really shine. Just keep in mind, they might not always be the best fit depending on what you're trying to accomplish.

While wrapping functions can be straightforward, Proxies offer a more dynamic approach. For instance, the Proxy will forward properties like `name` and `length` automatically, so you don’t have to manually handle those when wrapping. Also, Proxies work with arbitrary properties, giving you the flexibility to intercept any method instead of just the ones you know of before, which is a big plus.