HARMAN Interview Questions, Process, and Tips

The application follows a microservices architecture with a front-end layer, API layer, and multiple backend services.

• The front-end layer is built using React and communicates with the API layer through RESTful APIs.

• The API layer is built using Node.js and Express.js and acts as a gateway for all the backend services.

• The backend services are built using different technologies like Java, Python, and Go and communicate w...read more

Closure is a function that has access to variables in its outer scope. Hoisting is the behavior of moving declarations to the top of the scope.

• Closure allows for private variables and functions in JavaScript.

• Hoisting can lead to unexpected behavior when variables are declared after they are used.

• Example of closure: function outer() { let x = 10; function inner() { console.log(x); } return inner; }

• Example of hoisting: c