It is interesting to note that a Node.Js application facilitates the creation of a single thread when it is activated. Whenever the Node.Js receives a request, it first completes the processing before moving onto the next request processing. It is also important to mention here that Node.Js works by using the event loop. It also uses call-back functions and handles multiple requests that are coming from the user. In the working procedure of Node.Js, an event loop always plays an essential role. An event loop is also known as a function which instigates all the event handlers. Hence, lots of works are done on the back-end. It is also important to note that while processing a request, Node.Js usually attaches a call-back function. When the response is ready, the event triggers the callback function to send the response to the queries of the user.
