js-mushroom-episode-4-typescript.ts

import * as lodash from 'lodash';
import * as moment from 'moment';

// tslint:disable-next-line:no-class
class A {
  public constructor() { return; }
}

interface B {
  readonly c: number;
}

lodash.defaultTo(10, undefined);
enum UserRole {
  basicbitch,
  benbetts = 'admin',
}

interface User {
  readonly name: string;
  readonly email?: string;
  readonly role: UserRole;
}

const dan: User = {
  name: 'DJ Fresh',
  role: UserRole.benbetts,
};

type C = number | string;

interface Dictionary<Value> {
  readonly [key: string]: Value;
}

enum PeteEnum {
  here = 'redux_action_1',
  there = 'redux_action_2',
}

const numberDictionary: Dictionary<Number> = { dan: 10, 'dj khaled': -10 };

const x = 10;
const y = 'hello';
const z = false;
const a: any = {};
const b: number[] = [1, 2, 3];
const c: A = new A();
const d: B = { c: 10 };
const e: C = 'hello';
const f: C = 10;
const g: ReadonlyArray<number> = [10];

const add = async (number1: number, number2: number) => {
  return number1 + number2;
};
const today = moment();

const identity = <T>(thing: T) => {
  return thing;
};

const realthing = identity<number>(1);

type Adder = ReturnType<typeof add>;

// tslint:disable-next-line:no-console
console.log(`DJ Fresh > DJ Khaled by ${add(10, 12)}% at ${today}`);