Node.JS Intro - General Assembly

by vladikoff

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Node.JS and friends! Vlad Filippov, March, 2014

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What is Node.JS? • A platform built using the JavaScript runtime • Open Source ( github.com/joyent/node ) • Cross-platform, install it from nodejs.org

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Why Node.JS? • JavaScript, JavaScript everywhere! • Server-side frameworks, lots of developer tools! • Modular: 60,000+ Node.JS modules! • Works particularly well for: • JSON APIs • single page apps, realtime apps • command line tools

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API? http://nodejs.org/api/ Buffer C/C++ Addons Child Processes Crypto Events File System HTTP HTTPS Modules Net OS Path Process Query Strings Readline REPL Stream Timers URL Utilities VM ZLIB ….

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API: File System

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API: HTTP

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API: HTTP + FS

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Module: request

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Module: async

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Module: q

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What else is there? • Server Frameworks • Full Stack Frameworks • Testing Frameworks • CSS Preprocessors • Developer Tools • Native Applications • and more…

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Servers and Frameworks

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Full Stack

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Testing Frameworks

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CSS Preprocessors

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Developer Tools

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Native Apps

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Native Apps

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New Project

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Installed it!

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Tools: JSHint

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Initialize

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package.json ready

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Install modules!

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Installed and Saved

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npm tips • npm install  installs everything from “package.json” • npm install [module_name]  install a module locally to your project, into a “node_modules” directory • npm install -g [module_name]  installs the module globally, useful for CLI tools • npm cache clean  clear system wide module cache

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npm tips • npm install [module_name] --save  saves to “dependencies” • npm install [module_name] --save-dev  saves to “devDependencies” • npm remove [module_name]  remove the module from “node_modules” • npm list  will list all the modules and its dependencies in your project