How to build a TypeScript class constructor with object defining class fields?

Question

In TypeScript it\'s possible to create a class with a constructor that takes parameter with access modifiers and it automatically convert those parameters in class fields.

Answer 1

You can achieve similar behavior by creating an interface:

interface IProps {
  id: number;
  updatedAt: number;
  createdAt: number;
}

class Item {
  constructor(public props: IProps) {}
}

const item = new Item({ id: 1, updatedAt: 1, createdAt: 1 });
console.log(item.props.id);