What is the working of timers in JavaScript?

What are undeclared and undefined variables?

How can add new elements dynamically in javascript?

What is the difference between Angular and Node.js?

What is NPM?

What are the pros and cons of Node.js?

What is a Javascript Engine?

What is the difference between Node Js vs JavaScript?

Why is Node.js Single-threaded?

What is the control flow function? and its execution in control flow statements?

Why is Node.js so popular these days?

What is the difference between synchronous and asynchronous functions?