Nalini1998

// Created by Nalini Vo from Vietnam
// Requires:
**1. Book**
**Properties**: Author (string), title (string), pages (number), isCheckedOut (boolean, initially false), and ratings (array, initially empty).
**Getters**: All properties have a getter
**Methods**: .getAverageRating(), .toggleCheckOutStatus(), and .addRating()
**2. Movie**
**Properties**: Director (string), title (string), runTime (number), isCheckedOut (boolean, initially false), and ratings (array, initially empty)
**Getters**: All properties have a getter
**Methods**: .getAverageRating(), .toggleCheckOutStatus(), and .addRating()

Nalini1998

Chaining Multiple Promises
firstPromiseFunction()
.then((firstResolveVal) => {
  return secondPromiseFunction(firstResolveVal);
})
.then((secondResolveVal) => {
  console.log(secondResolveVal);
});

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