Scripting with NodeJS
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NodeJS allows JavaScript to be used outside of the browser for scripting purposes like automating tasks, building command line utilities, web scraping, and more. It uses the V8 JavaScript engine and the npm package manager, which makes it easy to find, install, and update third-party packages. Getting started with NodeJS involves cloning a GitHub repo containing the n utility, which helps manage Node versions, and then using n to install the latest stable version of Node and gain access to npm. Example scripts demonstrated include using Node to interact with YouTube via the command line, build command line apps using commander.js, daemonize processes, and integrate with databases like MongoDB.
Scripting with NodeJS
- 1. Scripting with NodeJS Ben Pearson - @benjaminpearson
- 2. Most of the time I develop with Objective C.... ...quite different to the clean syntax of JavaScript
- 3. Scripting • Automating tasks • Command line utilities • Macros • Scraping websites • Shell, Python, PHP, Ruby
- 4. NodeJS • Built on V8 engine • Run JavaScript outside of browser • Fast, non-blocking / asynchronous, lightweight • It's JavaScript, for realz!
- 6. npm - Package Manager for Node • Super easy • Search, install and update packages • http://npmjs.org/
- 8. Getting Started • git clone https://github.com/visionmedia/n.git • cd n • sudo make install • sudo n stable Latest versions of node come with npm, if you are having issues you can try • curl http://npmjs.org/install.sh | sudo sh * note: ideally its best not to use `sudo` so cavalier, there are alternative methods, but this is simple.
- 9. Code Example • Youtube • Command line args • process.argv • commander.js • Bin it
- 10. Code Example • Radar / Ping • Cron • Growl notifications • Daemonize
- 11. Code Example • Visual Rent • Web scraping with jQuery (sizzle selectors) • Express • fs • MongoDB
- 12. Moaaar Modules • npmjs.org - search modules • Node modules wiki page
- 13. What would MacGyver Do? Script with NodeJS
- 14. Thank you