Hydrock

async = generator => {
  const generator = generatorCreator();
  
  function next(value) {
    const nextResult = generator.next(value);
    if (nextResult.done) return nextResult.value;
    nextResult.value.then(next);
  };
  
  next();

Hydrock

class Car {
  constructor(maker, model) {
    this.maker = maker;
    this.model = model;
  }

  drive() {
      console.log("Zoom!");
  }
}

Hydrock

class Tesla extends Car {
    constructor(model, chargetime) {
        super('Tesla', model);
        this.chargetime = chargetime;
    }

    charge() {
        console.log("Charging...");
    }
}

Hydrock

function Car(maker, model) {
    this.maker = maker;
    this.model = model;
}

const tesla = new Car('Tesla', '3');

Hydrock

Car.prototype.drive = function() {
    console.log("Zoom!");
}

const tesla = new Car('Tesla', '3');
tesla.drive();

Hydrock

function Tesla(model, chargetime) {
    Car.call(this, 'Tesla', model);
    this.chargetime = chargetime;
}

Hydrock

Tesla.prototype = Object.create(Car.prototype);
Object.defineProperty(Tesla.prototype, ‘constructor’, {value: Tesla, enumerable: false});

Tesla.prototype.charge = function() {
    console.log("Charging...");
}

const tesla = new Tesla('3', 20);
tesla.drive();
tesla.charge();

Hydrock

const max = Number.MAX_SAFE_INTEGER;
// → 9007199254740991

Hydrock

max + 1;
// → 9007199254740992

Hydrock

max + 2;
// → 9007199254740992 ❌