Full Stack Engineer

Create a replica of the https://www.koovs.com/ landing page.
Features:
1- All the products should come from Backend APIs.
2- Create user registration and login flow. ( With email id and password)
3- Password should be encrypted.
4- Add product to cart feature
5- Add to cart should work without login and if the user has something on cart it should be there
on cart too after login too.

What is the lifecycle of React Components.

What is the virtual DOM? How does React use the virtual DOM to render the UI? (Learn)

Difference between Client Side Rendering vs Server Side Rendering (Learn)

Why is Next.js used for?

You are given an integer ‘N’. You have to print the value of Factorial of ‘N’. The Factorial of a number ‘N’ is defined as the product of all numbers from 1 to ‘N’.

For Example:

Consider if ‘N’ = 4, the Factorial of 4 will be the product of all numbers from 1 to 4, which is 1 * 2 * 3 * 4 = 24. Hence, the answer is 24.

What is Closure?

What is Promise and explain async and await. (Learn)

Explain Event Loop. (Learn)

What is Middleware in Express.js? 

What are the different types of Middleware?

How to handle Parallel API Requests in JavaScript? (Learn)

Explain Eventloop of JS. (Learn)

What are Props and states?

What will be the output of the following code snippet?

(function(){
setTimeout(()=> console.log(1),2000);
console.log(2);
setTimeout(()=> console.log(3),0);
console.log(4);
})();