A service worker is a script that sits between a web page and the network, acting as a proxy for network requests: if the network is available, the request is passed on to the target url; if the network is not available, the service worker will handle the request itself by checking cached responses or or queuing the request for synchronization once the network is available. Service workers are bridging the gap between native mobile applications and traditional web applications that require a network connection to function. Sometimes called progressive web apps, these applications enable a seamless offline experience when the user is not connected to a network.

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When I started writing javascript in earnest a couple of years ago, I was stuck in a very procedural way of thinking — all of my functions executed synchronously. If you replaced function with def and removed all var keywords, you would be reading Ruby (true story: yesterday I was debugging an issue with a React module and put in a binding.pry instead of debugger :facepalm: Old habits die hard).

Last year, I joined a team that writes javascript in the Node.js style, using callbacks for flow control. While I became familiar with the pattern pretty quickly, the whys and wherefores were missing from my understanding. Today I am filling in the gaps by reading Node.js Design Patterns by Mario Casciaro and Luciano Mammino. Read on →


I am a big fan of work-in-progress (WIP) commits. When I am working through a prototype or a spike, and need to do some experimentation with the code, I use WIP commits like they are save points in a game. Read on →

Whenever I need to build a quick web application I turn to ExpressJS. It is a fast, minimal, easy to configure web server that puts the E in MEAN). I wanted to build a REST API for a hobby app and found that the docs for how to nest routes are relatively few (see blog, stackoverflow answer). Combining these two resources, I learned a simple method for keeping your routes separate while creating a nested routing structure. Read on →