Cacher is the code snippet organizer for pro developers

Intro to Javascript GDI Slack Channel
https://gdibostonpublic.slack.com/messages/wistia-intro-to-js/

Intro to Javascript GDI Slides
http://roenok.github.io/gdi-intro-javascript/#/1

Array methods and properties 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array


Eloquent JavaScript
second edition

This is a book about JavaScript, programming, and the wonders of the digital. You can read it online here, or get your own paperback copy of the book.
http://eloquentjavascript.net/