Using Class Types in Generics in TypeScript
Classes can also be used as a generic type. You just need to specify the class type using its constructor. Therefore, instead of the parameter type:T, we need to specify type: {new(): T;}. Let's make a function that will in turn create a new user from the class User:
function getUser <T> (type: { new (): T; }): T {
return new type();
}
class User {
constructor() {
console.log('You create a new user!');
}
}
let user: User = getUser(User);
The result of the executed code:
'You create a new user!'
