The Node Beginner Book » A comprehensive Node.js tutorial. About The aim of this document is to get you started with developing applications with Node.js, teaching you everything you need to know about "advanced" JavaScript along the way.
It goes way beyond your typical "Hello World" tutorial. Status You are reading the final version of this book, i.e., updates are only done to correct errors or to reflect changes in new versions of Node.js. It was last updated on July 1, 2013. The code samples in this book are tested to work with Node.js version 0.10.12.
This site allows you to read pages 1-21 of this book for free. Intended audience This document will probably fit best for readers that have a background similar to my own: experienced with at least one object-oriented language like Ruby, Python, PHP or Java, only little experience with JavaScript, and completely new to Node.js. However, because functions and objects in JavaScript are different from their counterparts in most other languages, these will be explained in more detail. Table of contents. Process - Node.js v0.6.10 Manual. The process object is a global object and can be accessed from anywhere.
It is an instance of EventEmitter. Event: 'exit'# Emitted when the process is about to exit. There is no way to prevent the exiting of the event loop at this point, and once all exit listeners have finished running the process will exit. Therefore you must only perform synchronous operations in this handler. Example of listening for exit: Event: 'uncaughtException'# Emitted when an exception bubbles all the way back to the event loop. Example of listening for uncaughtException: Note that uncaughtException is a very crude mechanism for exception handling and may be removed in the future. Don't use it, use domains instead. Do not use it as the node.js equivalent of On Error Resume Next. Think of resuming as pulling the power cord when you are upgrading your system. You have been warned. Signal Events# Emitted when the processes receives a signal. Example of listening for SIGINT: Note: process.stdout# process.stderr# Example:
A Beginner’s Tutorial for Node.js : Node.js tutorials at Project 70. I’ve been spending some time learning Node.js.
Since there isn’t a clear definitive guide out there, I decided to put together a some of the best online resources I’ve found. The goal of this tutorial is to bring a beginner fully up to speed with Node. At the end you will understand Node’s eventing model and be able to create a site using the most popular modules and frameworks. It should take about 4 to 5 hours total. Prerequisites: some knowledge of javascript in particular and web programming in general. Background For those of you unfamiliar with it, Node is a server-side javascript framework for building scalable web apps.
Getting Started I’ve found that the most important thing for understanding Node is to realize it initially places an additional burden on the programmer. In Node, the entire server has one single thread, so now your code must play nice. The Basics (1 – 2 hours) Start with ‘The Node Beginner Book’ by Manuel Kiessling . Going Deeper (1 hour) A Real Example (1 hour)