staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

ericflo

var UndoMixin = {
  getInitialState: function() {
    return {
      undo: []
    };
  },

  handleUndo: function() {
    if (this.state.undo.length === 0) {
      return;

julik

# A module that allows us to send Backbone events up the tree of components
ReactTelegraph =
  componentWillMount: ->
    # Make BB events available to the component
    _.extend @, Backbone.Events
  
  componentWillUnmount: ->
    # Remove all Backbone event listeners
    @off null, null, null
  

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

dcramer

from django.db.models.signals import post_init

def track_data(*fields):
    """
    Tracks property changes on a model instance.
    
    The changed list of properties is refreshed on model initialization
    and save.
    
    >>> @track_data('name')