Class Types

class Video {
  title: string = '';
  private _year: number = 0; // `private` keyword is specific to TypeScript
  // and fails at COMPILE TIME if accessed directly.
  // Use getter and setter to access this property.
  #myPrivateRating: number = 5; // `#` prefix is specific to JavaScript
  // and fails at RUNTIME if accessed directly.
  // Use getter and setter to access this property.
  publicRating: number = 0;
 
  constructor(title: string) {
    console.log("Constructor called");
    this.title = title;
  }
 
  // Getter and Setter for the private property `_year`
  // We use _year as the private property name to avoid naming conflicts with the getter and setter methods.
  get year(): number {
    console.log("Getter for year called");
    return this._year;
  }
 
  set year(value: number) {
    console.log("Setter for year called");
    this._year = value;
  }
 
  printItem(): void {
    console.log(`
      Title: ${this.title}, \
      Year: ${this.year}, \
      My Private Rating: ${this.#myPrivateRating}, \
      Public Rating: ${this.publicRating}
      `);
  }
}
 
 
 
let terminator = new Video("Terminator");
terminator.printItem();
// Constructor called
// Getter for year called
//       Title: Terminator,       Year: 0,       My Private Rating: 0,       Public Rating: 0
 
terminator.year = 1984; // calling the setter to set the year
terminator.printItem()
// Constructor called
// Setter for year called
// Getter for year called
//       Title: Terminator,       Year: 1984,       My Private Rating: 0,       Public Rating: 0
 
terminator.myPrivateRating = 5; // compile error Property 'myPrivateRating' does not exist on type 'Video'.
                                // Need to use the setter to set the private rating
 
terminator.publicRating = 4.5; // public property can be accessed directly
terminator.printItem();
// Constructor called
// Getter for year called
//       Title: Terminator,       Year: 0,       My Private Rating: 0,       Public Rating: 4.5