Skip to content

Instantly share code, notes, and snippets.

View davidkern13's full-sized avatar

David Kern davidkern13

7 followers · 56 following
  • TelAviv
View GitHub Profile
@supahgreg
supahgreg / mvvm.md
Created April 10, 2012 00:18
MVVM

#MVVM For JavaScript Developers

MVVM (Model View ViewModel) is an architectural pattern based on MVC and MVP, which attempts to more clearly separate the development of user-interfaces (UI) from that of the business logic and behaviour in an application. To this end, many implementations of this pattern make use of declarative data bindings to allow a separation of work on Views from other layers.

This facilitates UI and development work occurring almost simultaneously within the same codebase. UI developers write bindings to the ViewModel within their document markup (HTML), where the Model and ViewModel are maintained by developers working on the logic for the application.

##History

MVVM was originally defined by Microsoft for use with Windows Presentation Foundation (WPF) and Silverlight, having been officially announced in 2005 by John Grossman in a blog p

@crtr0
crtr0 / client.js
Created June 8, 2012 17:02
A simple example of setting-up dynamic "rooms" for socket.io clients to join
// set-up a connection between the client and the server
var socket = io.connect();
// let's assume that the client page, once rendered, knows what room it wants to join
var room = "abc123";
socket.on('connect', function() {
// Connected, let's sign-up for to receive messages for this room
socket.emit('room', room);
});
@dunhamsteve
dunhamsteve / scroller.js
Last active June 28, 2020 16:10
decorator for iPad scrollable areas
// This code is public domain, share and enjoy.
window.ui = window.ui || {};
/** @constructor */
ui.ListView = function(element, collection) {
this.el = element;
this.cellHeight = 30;
this.collection = collection;
@umidjons
umidjons / sort-object-properties-by-value.md
Last active January 16, 2024 13:00
JavaScript: sort object properties by value (numeric or string)

Sort object properties by value (values are text)

I have following object:

var cities={10:'Tashkent', 14:'Karakalpakiya', 16:'Andijan'};

I want sort it by city names, so after sort it should be:

var cities={16:'Andijan', 14:'Karakalpakiya', 10:'Tashkent'};

But I can't sort object properties, instead can convert object into array, then sort items.

@Chaser324
Chaser324 / GitHub-Forking.md
Last active May 2, 2024 05:49
GitHub Standard Fork & Pull Request Workflow

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

@alexpchin
alexpchin / Add_Existing_Project_To_Git.md
Created June 1, 2014 20:14
Add Existing Project To Git Repo

#Adding an existing project to GitHub using the command line

Simple steps to add existing project to Github.

1. Create a new repository on GitHub.

In Terminal, change the current working directory to your local project.

##2. Initialize the local directory as a Git repository.

git init
@joshnuss
joshnuss / app.js
Last active March 4, 2024 00:01
Express.js role-based permissions middleware
// the main app file
import express from "express";
import loadDb from "./loadDb"; // dummy middleware to load db (sets request.db)
import authenticate from "./authentication"; // middleware for doing authentication
import permit from "./authorization"; // middleware for checking if user's role is permitted to make request
const app = express(),
api = express.Router();
// first middleware will setup db connection
@parmentf
parmentf / GitCommitEmoji.md
Last active May 4, 2024 16:59
Git Commit message Emoji
@DmitryMyadzelets
DmitryMyadzelets / index.html
Created November 20, 2016 14:37
Routing nginx + nodejs\expressjs + socket.io
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Chat</title>
<script src="./socket.io/socket.io.js"></script>
<script type="text/javascript">
@everget
everget / js-bitwise-hacks.md
Last active December 22, 2023 20:17