Type parameters

• T

  Type of the objects to compare.

  class Entity implements Equatable<Entity> {
    private id: number;
    private name: string;
    private mail: string;
  
    constructor(id: number, name: string, mail: string) {
      this.id = id;
      this.name = name;
      this.mail = mail;
    }
  
    equals(rhs: Entity) {
      return rhs !== undefined && this.id === rhs.id;
    }
  }
  const user = DatabaseAPI.getById(1);
  
  // ... some code
  
  // This creates a new user instance
  const sameUser = DatabaseAPI.getById(1);
  
  user === sameUser; // => false
  user.equals(sameUser) // => true