Persist state after reducers execute with Redux
Lets consider a situation where we want to trigger an asynchronous operation AFTER a reducer fires. How might we go about it? There are a few »
Elasticsearch 2.3 cluster with Docker
This is a guide for starting a multi-node Elasticsearch 2.3 cluster from Docker containers residing on different hosts. This is not a guide for creating »
Trigger a sub-component event with Enzyme
I was struggling to get sub-component interactions nailed down and figured out a few ways to propagate your sub-component interactions with Enzyme. In my scenario, I »
Flux to Redux: Convert Container Components
In the previous articles we discussed converting Actions and Stores into Reducers. In this article, we'll discuss converting a Flux Container component into a Redux Container »
Flux to Redux: Converting Stores to Reducers
In the previous post we converted Flux actions to Redux action creators. The next part will discuss converting stores into reducers. Stores are more complicated, but »
Flux to Redux: Converting Action Creators
This is the first part in a series of tutorials showing how to convert Flux code to Redux. I find it easiest to start by converting »
A simple AWS CloudFormation example with Lambda and Kinesis
I finally took the plunge and played around with creating a CloudFormation template. It was actually easier than I thought it would be. So that's a »
Chained callback pattern in Javascript
Imagine we have four methods a(next), b(next), c(next), d() where the first three accept a callback. We want to execut these methods in »
Aggregate on string length in MongoDB
It's not actually possible to use the aggregation pipeline to aggregate on string length, at last in MongoDB 3.2 (the current version as of this »
Reload module with Node.js require
In Node.js using require to load a module will cache the result. If a module exports a constructed object it will be treated as a »
Retain tty when using child_proces.spawn
In trying to use child_process.spawn to launch a series of script files, I was running into an issue getting the child processes to render »
Function wrapping with Javascript Decorators
One of the best uses for ES7/Javascript 2017 decorators is adding additional functionality to a function. This article will discuss the basics of decorators and »
C# cross-process synchronization with mutexes
This example shows how you can use a mutex in C# to perform cross-process locking. For me, I needed a way to perform file system synchronization »
Select placeholder with React
Here's how I created a 'placeholder' effect for an HTML select element in React. The gist is that you create a react component that checks if »
React - passing a value with onClick
I ran into an issue where I had a list of items being rendered and wanted to trigger an action if one of them was clicked. »
Testing async/await with Babel and Mocha
I was curious about testing ES6/7 code transpiled with Babel. Getting it to work is fairly straightforward. Here's what I found... Setup The documentation for »
Gettings started with Babel and Node
I've been using Babel recently to perform transpiling of Node.js code. I've previously used Traceur and it always left a bit to be desired. The »
vNext ASP.NET 5 Custom Middleware
If you're curious about creating custom Middleware in ASP.NET 5 here are a few things I've come up with while playing around. First a little »
vNext C# Dependency Reference using NPM instead of NuGet
Natively, Visual Studio 2015 integrates with NuGet for project dependency resolution, see here for a bit more info. This workflow is heavily tied to NuGet, which »
vNext Depedency Injection Overview
I've been playing around with the latest version (beta4) of ASP.NET 5 and vNext and I have to say I'm impressed. One of my favorite »