staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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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.

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revolunet

// LZW-compress a string
function lzw_encode(s) {
    var dict = {};
    var data = (s + "").split("");
    var out = [];
    var currChar;
    var phrase = data[0];
    var code = 256;
    for (var i=1; i<data.length; i++) {
        currChar=data[i];

Sumbera

/*
 UPDATE July 2016 , moved and updated to here: https://github.com/Sumbera/gLayers.Leaflet
 
 Generic  Canvas Overlay for leaflet, 
 Stanislav Sumbera, April , 2014

 - added userDrawFunc that is called when Canvas need to be redrawn
 - added few useful params fro userDrawFunc callback
  - fixed resize map bug
  inspired & portions taken from  :   https://github.com/Leaflet/Leaflet.heat

ns-1m

// How to use it?

// OnAdd() is called when you use:
//      var footButton = new L.Control.Button(footButtonOpts).addTo(map);
//   It is passed the map object to which your control is being added.

// The third parameter passed to L.DomEvent.addListener is the context ('this' keyword) which
// you wish to have in the callback (second parameter).

// I still don't know how to use it.

InfoSec812

!!
!! Implementation of JSONPatch (http://jsonpatch.com/) using PostgreSQL >= 9.5
!!

CREATE OR REPLACE FUNCTION jsonb_copy(JSONB, TEXT[], TEXT[]) RETURNS JSONB AS $$
DECLARE
  retval ALIAS FOR $1;
  src_path ALIAS FOR $2;
  dst_path ALIAS FOR $3;
  tmp_value JSONB;

sketchpunk

var blob	= window.atob("AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAgD8AAAAA"),	// Base64 string converted to a char array
	fLen	= blob.length / Float32Array.BYTES_PER_ELEMENT,						// How many floats can be made, but be even
	dView	= new DataView( new ArrayBuffer(Float32Array.BYTES_PER_ELEMENT) ),	// ArrayBuffer/DataView to convert 4 bytes into 1 float.
	fAry	= new Float32Array(fLen),											// Final Output at the correct size
	p		= 0;																// Position

for(var j=0; j < fLen; j++){
	p = j * 4;
	dView.setUint8(0,blob.charCodeAt(p));
	dView.setUint8(1,blob.charCodeAt(p+1));

pepelsbey

{% assign array = 'c|c|b|b|a|a' | split: '|' %}
{% assign tags = array[1] %}

{% for item in array %}
    {% unless tags contains item %}
        {% capture tags %}{{ tags }}|{{ item }}{% endcapture %}
    {% endunless %}
{% endfor %}

{{ tags | split: '|' | sort | join: ', ' }}

grahampullan

license: mit

jasondavies

A demonstration of how to calculate the areas of Voronoi regions clipped by geographic features using D3.

[D3’s implementation](Sutherland–Hodgman algorithm) of the Sutherland–Hodgman algorithm only works for convex clip polygons, but we exploit the fact that Voronoi regions are guaranteed to be convex, and use each Voronoi region as a clip polygon, with the projected geographic boundary as a subject polygon.

In response to a question by Gonzalo Bellver.

tmcw

This is companion code to this guide.