Skip to content

Instantly share code, notes, and snippets.

@darul75
darul75 / async.js
Created March 14, 2019 22:03 — forked from bschwartz757/async.js
Async/await function to fetch data from multiple URLs in parallel
/* Client side, works in Chrome 55 and Firefox 52 without transpilation */
//https://blogs.msdn.microsoft.com/typescript/2016/11/08/typescript-2-1-rc-better-inference-async-functions-and-more/
async function fetchURLs() {
try {
// Promise.all() lets us coalesce multiple promises into a single super-promise
var data = await Promise.all([
/* Alternatively store each in an array */
// var [x, y, z] = await Promise.all([
// parse results as json; fetch data response has several reader methods available:
//.arrayBuffer()
@darul75
darul75 / Google_oAuth.js
Created January 15, 2019 17:28 — forked from entaq/Google_oAuth.js
Google oAuth 2.0 sample
/**
reference -
https://developers.google.com/accounts/docs/OAuth2WebServer
https://code.google.com/apis/console/
https://developers.google.com/+/api/latest/
**/
////handle all requests here
function doGet(e) {
@darul75
darul75 / introrx.md
Created November 9, 2015 21:23 — forked from staltz/introrx.md
The introduction to Reactive Programming you've been missing
@darul75
darul75 / github.css
Last active August 29, 2015 14:10 — forked from andyferra/github.css
body {
font-family: Helvetica, arial, sans-serif;
font-size: 14px;
line-height: 1.6;
padding-top: 10px;
padding-bottom: 10px;
background-color: white;
padding: 30px; }
body > *:first-child {
/*
* twitter-entities.js
* This function converts a tweet with "entity" metadata
* from plain text to linkified HTML.
*
* See the documentation here: http://dev.twitter.com/pages/tweet_entities
* Basically, add ?include_entities=true to your timeline call
*
* Copyright 2010, Wade Simmons
* Licensed under the MIT license
angular.module('myApp')
.run(['$rootScope', function ($rootScope) {
window.i18n.init(options, function () {
// When finished loading translations, trigger re-evaluation of views for translations
$rootScope.$digest();
});
}])
.filter('translate', [function(){
return function(key, params) {
// i18next needs time to initialize (loading translations). In this phase translation does not work

This demonstrates raster-based reverse geocoding using canvas and D3.js. Geocoding is based on the color of the pixel at a given projected position. Note that the canvas is only shown here for the sake of explanation and debugging - this would in fact probably work faster if the canvas was not attached to the document at all.

The biggest remaining issue here is precision, which depends on:

  • the size of the canvas, and
  • the projection used.

Determining the optimum size based on the accuracy of your data is left as an exercise for the reader. Edge cases will also fail here, generally returning null - one option might be to stroke neighborhoods in a color, and then return an "uncertain" value for any non-grayscale pixel.

Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
<canvas width=220 height=150></canvas>
var util = require('util'),
http = require('http'),
events = require('events');
var Twitter = function(opts) {
this.username = opts.username;
this.password = opts.password;
this.track = opts.track;
this.data = '';
};