While diving into my ts learning journey, I came across this interesting code snippet:
export const Field:<T> (x:T) => T;
I'm having trouble wrapping my head around it.
It resembles the function definition below:
type myFunction<T> = (x: T) => T
Could this be an anonymous type definition? How do I actually use it?
Here is the definition of an identity function:
<T>(x: T) => T
This function takes an argument of type T and returns an object of the same type. Essentially, it echoes back whatever type it receives.
In JavaScript, the implementation would be:
(x) => x
To implement this in Typescript, you could write:
const fn: Field = <T>(x: T) => x
Check out this Typescript Playground for a live demo!
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