What is callback in Node JS? The callback function is called after the completion of a specific task. During the Node JS development, a developer makes heavy use of the Callback function in NodeJS. Asynchronous behavior of NodeJS allows executing the code without waiting for the database query, any I/O operation within the function, etc. …
Read Eval Print Loop (REPL) is a terminal in Node JS that provides an environment to perform operations. We will discuss these operations in the next section. Like Windows and Linux operating systems provides interactive shells and terminals to run commands. These commands are processed by the terminal and the terminal generates output. Similar is …
In the previous tutorial, we covered the basic concepts and introduction to Node JS and environment setup. In this article, you will learn how to create a Node JS application (which outputs “Hello World“) and run it in the browser. Before starting creating our first Node JS app, go through the components of the JS …
Node.js is a high-performance JavaScript runtime based on Chrome’s V8 JavaScript engine. It was initially published in 2009 and has since become one of the most popular platforms for developing server-side applications. We will introduce you to Node.js and highlight why it is worth considering for your next project in this post. What is Node.js? …