"Utilizing Typescript's generic type declaration feature to pass type

Imagine this scenario with a specific type and a generic:

type Data = { item: number };

type Generic<T> = {
  obj: T;
};

Now, let's create an instance of this generic:

const test: Generic<Data> = { obj: { item: 0 } };

When accessing test.obj, wouldn't it be nice to see the type for obj (Data) when clicked on, rather than its generic type (T)?

Upon clicking on test.obj

https://i.sstatic.net/W6uku.png

Expected Behavior:

I expected it to navigate to the definition of Data type

type Data = { item: number };

Actual Outcome:

Instead, it led me to the definition in the generic T

type Generic<T> = {
  obj: T;
};

Do you think achieving this behavior is possible?

Answer №1

example.obj is not a type; it is actually a property within the code. Utilizing the "Go to Definition" feature on this symbol will reveal the obj property, which is established by the generic type.

If you are unable to find the type definition using the "Go to Definition" option, consider checking if your IDE offers a "Go to Type Definition" alternative. This will navigate you to the specific type of the symbol rather than just the symbol itself:

https://i.sstatic.net/dsA3g.png

https://i.sstatic.net/QAHXm.png

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