Full Stack Engineer Intern

You are given a string 'str' of length 'N'.

Your task is to reverse the original string word by word.

There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.

Example :

If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.

• How does Node.js handle asynchronous operations?
• What does useEffect do in React? (Learn)
• Which module is used to create a web server in Node.js? (Learn)
• What will console.log(typeof NaN); return?
• Do React props allow parent-to-child communication?
• What is the purpose of require() in Node.js?

• What does setTimeout() do in JavaScript? (Learn)
• Which keyword is used to declare a constant variable in JavaScript? (Learn)
• Is push a valid HTTP method?

• Explain the project architecture and the tech stack used in the project.
• What challenges did you face in your project, and how did you resolve them?
• How did you optimize your project for performance and scalability?
• How do you fetch YouTube videos on the Alumni Portal page? Write code for the same (related to the project).

• What is the use of server languages?
• What is Redux, and how does it work in React?
• What is Lazy Loading, and how is it implemented in React?
• How does asynchronous programming work in Node.js?
• What are JWT tokens, and how are they used for authentication?
• What is the difference between git pull and git fetch? (Learn)
• What is the purpose of .gitignore?