Yodel Development Technology Newsletter - February 2017

Feature flags in React

Almost every feature in Product Hunt starts with a feature flag. Here is how to have feature flags with React

Making microservices more resilient with circuit breaking

One of the inevitabilities of moving to a microservices architecture is that you’ll start to encounter partial failures—failures of one or more instances of a service. These partial failures can quick

React’s Five Fingers of Death. Master these five concepts, then master React.

A few years ago, my friend Sean started telling me how this brand new front-end library called React was going to take over the web. At…

Testing React Applications with Jest

Learn how to test React applications with the Jest JavaScript testing framework.

Portainer, a UI for Docker

Part of my daily routine is to go through Reddit, RSS feeds and also wading through the MediaGlasses twitter account where I follow loads…

Get Started with Debugging JavaScript in Chrome DevTools

Get started with debugging JavaScript using Chrome DevTools in this interactive tutorial.

Deploying Pull Requests with Docker

The Git repositories in my current project are hosted on Bitbucket Cloud. Any code changes have to go through pull requests. Jenkins builds the pull requests and gives its approval if the build is gre

Source Maps with webpack in Chrome

Developing without source maps can be painful. You just shouldn't have to endure that sort of thing. To top that, there isn't much worse that having to sift through minified code and guess at what is

Code-splitting your way to better performance with Webpack

Using Webpack want to learn more about code splitting? Then check out this weeks Totally Tool Tips where Addy gives you his top tips and Matt, unhelpfully, q...

Introducing Docker 1.13

Today we’re releasing Docker 1.13 with lots of new features, improvements and fixes to help Docker users with New Year’s resolutions to build more and better container apps. Docker 1.13 builds on and

Better performance: the case for timeouts

Use timeouts to build more robust and less expensive distributed systems: less memory, less downtime, more fun!

How to TDD FizzBuzz with JUnit Theories

FizzBuzz: a recap The notorious FizzBuzz interview test was originally proposed as a way of weeding out candidates for programming jobs who – to put it bluntly – couldn’t program. …

Handling Events in React 101

In this article, we will be looking at how to handle events in React. Specifically, we'll look at how to listen for some of the most common event types. We'll also look at some of the event properties

How to Turn Requirements into User Stories

Editorial Note: I originally wrote this post for the SmartBear blog.   Let me ask you something.  When you read the title of this post, did you envision it laying out some onerous process for converti