slavik57 / typescript-playground Goto Github PK

Hi @slavik57 ,

I was practicing with the URL example,

https://github.com/slavik57/typescript-playground/blob/master/src/advancedTypes/mappedTypes.ts

I was trying to figure out how to assign values to the [age, name] property using set (), but it shows me an error that you can see below.

If there is a way to correct the error, I will appreciate it.

index.ts

interface Proxy<T>{
  get(): T;
  set(value: T): void;
}

type Proxied<T> = {
  [P in keyof T]: Proxy<T[P]>;
}

interface Cat{
  age: number;
  name: string;
}


type PC = Proxied<Cat>;

const doc: PC = {
  name: doc.name.set("red"),
  age: doc.age.set(2)
};

console.log(doc.age.get());

output

  src/typetify.ts:29:7
    29 const doc: PC = {
             ~~~
    'doc' is declared here.
src/typetify.ts:31:8 - error TS2454: Variable 'doc' is used before being assigned.

31   age: doc.age.set(24)
          ~~~