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Comparing Objects in OOP in JavaScript

Let's see how variables containing objects are compared. Two variables will be considered equal if they contain a reference to the same object. Let's see in practice. Let's say we have the following class:

javascriptclass User {
  constructor(name) {
    this.name = name;
  }
}

Let's create two objects of this class:

javascriptlet user1 = new User('1');
let user2 = new User('2');

Let's compare variables that contain a reference to the same object:

javascriptconsole.log(user1 === user1); // true

Now let's compare variables containing references to different objects:

javascriptconsole.log(user1 === user2); // false

Задание 1

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = new Employee('eric');

console.log(emp1 === emp2);

Задание 2

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = new Employee('eric');

console.log(emp1 === emp1);

Задание 3

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = new Employee('john');

console.log(emp1 === emp2);

Задание 4

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = new Employee('eric');

console.log(emp1 !== emp1);

Задание 5

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = emp1;

console.log(emp1 === emp2);

Задание 6

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = new Employee('eric');

console.log(emp1 !== emp2);

Задание 7

Tell me what the result of the comparison will be in the following code:

javascriptclass Employee {
  constructor(name) {
    this.name = name;
  }
}

let emp1 = new Employee('john');
let emp2 = emp1;
emp2.name = 'eric';

console.log(emp1 === emp2);