import {Book} from "./interfaces"; export type Books = Array<Book>; export function booksTest() { let poetryBooks: string[] = ['a']; let fictionBooks: Array<string> = ['b']; let historyBooks = new Array<Book>(5); // Forbidden // let historyBooks: Books = new Books(5); console.log(poetryBooks, fictionBooks, historyBooks); } export function LogAndReturn<T>(thing: T): T { console.log(thing); return thing; }