Node.js

CoffeeScript Basics

CoffeeScript is an evolution of JavaScript. It actually compiles down to optimized JavaScript. It feels a lot like Python because of the significant whitespace, and lack of semi-colon line endings and curly braces. The syntax is a lot sparser than JavaScript which lends to its readability and simplicity. CoffeeScript can be run as an interpreter or a compiler. You can write plugins for the GitHub Atom Editor using CoffeeScript. The compiled JavaScript can be used for a web application or for command line applications run by Node.js.

Writing a Web Scraper with Node.js

Node.js is, according to their website, "a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices." It is essentially a javascript interpreter for the command line. With Node.js, you can write scripts in JavaScript just like you would with PHP and Python.