So before starting with the node fundamentals, I got the question why is it important to learn ? and here it is, Node.js is a JavaScript backend environment that runs JavaScript code outside of the browser. Node.js is used as a backend to interact with the frontend so in blockchain apps development it is used as a backend to interact with frontend.
Starting with node was pretty much easy for me because coming from JavaScript background it makes more easy. Node is just another JavaScript based runtime environment.
What I learned today?
Today, I learned about what node.js is? then I learned about the I/O models and how Node.js uses the nonblocking I/O model. Also, I learned what happens behind the scenes in the JavaScript runtime. Further, I learned how to use the global variables in each module to check how they remain local to a “module.” Finally, I learned how to export the variables and functions declared in one module and import them in another module in order to use them.
Learned about Module keyword, require keyword, methods to Export Using module.exports and exports keyword.