Typetypesv0.4.0

TypedConstructor

Extracts the constructor signature from a constructor type

type TypedConstructor<ConstructorType> = ConstructorType extends new (
    ...args: infer A
) => infer R
    ? new (...args: A) => R
    : ConstructorType extends abstract new (...args: infer A) => infer R
      ? new (...args: A) => R
      : never;

type TypedConstructor<ConstructorType> = ConstructorType extends new (
    ...args: infer A
) => infer R
    ? new (...args: A) => R
    : ConstructorType extends abstract new (...args: infer A) => infer R
      ? new (...args: A) => R
      : never;

class Example {
  constructor(public name: string, public age: number) {}
}

type Result = TypedConstructor<typeof Example>; // Result: new (name: string, age: number) => Example

class Example {
  constructor(public name: string, public age: number) {}
}

type Result = TypedConstructor<typeof Example>; // Result: new (name: string, age: number) => Example

ConstructorType

The constructor type to extract the signature from

ConstructorType

ConstructorType

Typetypesv0.4.0

TypedConstructor

Extracts the constructor signature from a constructor type

type TypedConstructor<ConstructorType> = ConstructorType extends new (
    ...args: infer A
) => infer R
    ? new (...args: A) => R
    : ConstructorType extends abstract new (...args: infer A) => infer R
      ? new (...args: A) => R
      : never;

type TypedConstructor<ConstructorType> = ConstructorType extends new (
    ...args: infer A
) => infer R
    ? new (...args: A) => R
    : ConstructorType extends abstract new (...args: infer A) => infer R
      ? new (...args: A) => R
      : never;

class Example {
  constructor(public name: string, public age: number) {}
}

type Result = TypedConstructor<typeof Example>; // Result: new (name: string, age: number) => Example

class Example {
  constructor(public name: string, public age: number) {}
}

type Result = TypedConstructor<typeof Example>; // Result: new (name: string, age: number) => Example

ConstructorType

The constructor type to extract the signature from

ConstructorType

ConstructorType