JavaScript-da OOP-da instanceof operatori

instanceof operatori obyektning ma'lum bir classga tegishli ekanligini tekshirish imkonini beradi. Keling, bir misolni ko'rib chiqaylik. Faraz qilaylik, bizda quyidagi class mavjud:

class User {
	
}

Ushbu classdan obyekt yaratamiz:

let user = new User;

O'zgaruvchidagi obyekt bizning classimizga tegishli ekanligini teksiramiz:

console.log(user instanceof User); // true

Quyidagi kodni bajarish natijasi qanday bo'lishini aniqlang:

class Student {
	
}
class Employee {
	
}

let employee = new Employee;
console.log(employee instanceof Employee);
console.log(employee instanceof Student);

Quyidagi kod berilgan:

class Student {
	constructor(name) {
		this.name = name;
	}
}
class Employee {
	constructor(name) {
		this.name = name;
	}
}

let users = [
	new Student('user1'),
	new Employee('user2'),
	new Student('user3'),
	new Employee('user4'),
	new Student('user5'),
	new Employee('user6'),
	new Student('user7'),
];

Obyektlar massivini tsikl yordamida aylantiring va faqat xodimlarning ismlarini konsolga chiqaring.