Let's say there is a class called X:
class X {
constructor();
performAction(): void;
}
Now, we have another class named Y where we want to include an object of class X as a property:
class Y {
xProperty: X;
}
How do we go about defining TypeScript declarations (.d.ts) for a class Z with a property of class X that also includes an additional function additionalAction(): void;?
More details
In class Z, the modified class X looks like this:
class X {
constructor();
performAction(): void;
additionalAction(): void;
}
I attempted to define class Z as shown below but encountered issues:
class Z {
xProperty: X | { additionalAction(): void; };
}