Aiming at developers that already have experience with other programming languages means that this document won’t cover really basic stuff like data types, variables, control structures and the likes. You already need to know about these to understand this document.
Structure of this document
Upon finishing this document, you will have created a complete web application which allows the users of this application to view web pages and upload files.
Which, of course, is not exactly world-changing, but we will go some extra miles and not only create the code that is “just enough” to make these use cases possible, but create a simple, yet complete framework to cleanly separate the different aspects of our application. You will see what I mean in a minute.
Next, we will stay with the good old tradition of writing a “Hello World” application, which is a most basic Node. js application that “does” something.
Then, we will discuss what kind of “real” application we want to build, dissect the different parts which need to be implemented to assemble this
application, and start working on each of these parts step-by-step.
What you really wanted was “the real thing”, you wanted to know how to build complex web sites – you learned a programming language like PHP, Ruby, Java, and started writing “backend” code.