Is there a way to retrieve the inner type of a generic type in Typescript, specifically T of myType<T>?
Take this example:
export class MyClass {
myMethod(): Observable<{ prop1: string, ... }> {
....
}
}
type myClassReturn = ReturnType<MyClass['myMethod']>;
// The current type is 'Observable<{ prop1: string, ... }>'.
// How can I change it to '{ prop1: string, ... }'?
Appreciate any help. Thank you!
If you want to extract type parameters from generic types, you can utilize the infer keyword. Here's an example:
type ExtractInnerType<T> = T extends Observable<infer U> ? U : never;
// You can apply this as follows:
type Result = ExtractInnerType<ReturnType<MyClass['myMethod']>> // { prop1: string, ... }
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