olivierchatry

Library

We us proj4js ( http://proj4js.org/ ), which is a javascript port of Proj ( https://proj.org/ ) for doing our projections. This is a well known, and use, library. It is the default projection library for GDAL.

Parameters, datum shift, etc.

All the coordinate system definitions come from http://epsg.io ( you can get it directly with https://epsg.io/[EPSG], so for example NAD50 UTM32 would be : https://epsg.io/23032, and the description we are using : https://epsg.io/23032.proj4 )

The value we get for EPSG:23032 is : +proj=utm +zone=32 +ellps=intl +towgs84=-87,-98,-121,0,0,0,0 +units=m +no_defs

contagnas

;; -*- mode: emacs-lisp; lexical-binding: t -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.

(defun dotspacemacs/layers ()
  "Layer configuration:
This function should only modify configuration layer settings."
  (setq-default
   dotspacemacs-distribution 'spacemacs

addyosmani

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

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.

---

gsoltis

(function () {
  var makeCallback = function(eventType, observer) {
    if (eventType === 'value') {
      return function(snap) {
        observer.onNext(snap);
      };
    } else {
      return function(snap, prevName) {
        // Wrap into an object, since we can only pass one argument through.
        observer.onNext({snapshot: snap, prevName: prevName});

chengyin

// 1. Go to page https://www.linkedin.com/settings/email-frequency
// 2. You may need to login 
// 3. Open JS console
//    ([How to?](http://webmasters.stackexchange.com/questions/8525/how-to-open-the-javascript-console-in-different-browsers))
// 4. Copy the following code in and execute
// 5. No more emails
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// Bookmarklet version: 
// http://chengyin.github.io/linkedin-unsubscribed/

ryanhanwu

var express = require('express'),
    routes = require('./routes'),
    upload = require('./routes/upload'),
    http = require('http'),
    https = require('https'),
    fs = require('fs'),
    path = require('path'),
    httpApp = express(),
    app = express(),
    certPath = "cert";