| # The upstream module is the link between Node.js and Nginx. | |
| # Upstream is used for proxying requests to other servers. | |
| # All requests for / get distributed between any of the servers listed. | |
| upstream helloworld { | |
| # Set up multiple Node.js webservers for load balancing. | |
| # max_fails refers to number of failed attempts | |
| # before server is considered inactive. | |
| # weight priorities traffic to server. Ex. weight=2 will recieve | |
| # twice as much traffic as server with weight=1 | |
| server <your server ip>:3000 max_fails=0 fail_timeout=10s weight=1; |
| # delete local tag '12345' | |
| git tag -d 12345 | |
| # delete remote tag '12345' (eg, GitHub version too) | |
| git push origin :refs/tags/12345 | |
| # alternative approach | |
| git push --delete origin tagName | |
| git tag -d tagName |
When hosting our web applications, we often have one public IP
address (i.e., an IP address visible to the outside world)
using which we want to host multiple web apps. For example, one
may wants to host three different web apps respectively for
example1.com, example2.com, and example1.com/images on
the same machine using a single IP address.
How can we do that? Well, the good news is Internet browsers
| // Simple proxy/forwarding server for when you don't want to have to add CORS during development. | |
| // Usage: node proxy.js | |
| // Open browser and navigate to http://localhost:9100/[url] | |
| // Example: http://localhost:9100/http://www.google.com | |
| // This is *NOT* for anything outside local development. It has zero error handling among other glaring problems. | |
| // This started as code I grabbed from this SO question: http://stackoverflow.com/a/13472952/670023 |
This Gist presents a new design of class-based object construction in ES6 that does not require use of the two-phase @@create protocol.
One of the characteristics of this proposal is that subclass constructors must explicitly super invoke their superclass's constructor if they wish to use the base class' object allocation and initialization logic.
An alternative version of this design automatically invokes the base constructor in most situations.
| "use strict"; | |
| var crypto = require("crypto"); | |
| var EncryptionHelper = (function () { | |
| function getKeyAndIV(key, callback) { | |
| crypto.pseudoRandomBytes(16, function (err, ivBuffer) { | |
| var keyBuffer = (key instanceof Buffer) ? key : new Buffer(key) ; |
2015-01-29 Unofficial Relay FAQ
Compilation of questions and answers about Relay from React.js Conf.
Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.
Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).
| /*! | |
| * @fileOverview Finance Excel Rate Formula Javascript Equivalent | |
| * @version 1.0.0 | |
| * | |
| * @author Burak Arslan @kucukharf http://www.github.com/kucukharf | |
| * @license | |
| * Copyright (c) 2010-2018 Burak Arslan | |
| * Licensed under Creative Commons (CC) license | |
| * @usage RATE($periods, $payment, $present, $future, $type, $guess) | |
| */ |
| function logClass(target: any) { | |
| // save a reference to the original constructor | |
| var original = target; | |
| // a utility function to generate instances of a class | |
| function construct(constructor, args) { | |
| var c : any = function () { | |
| return constructor.apply(this, args); | |
| } |
A curated list of amazingly awesome Electronic and Hardware platform #WoT #IoT #M2M
