I recently ran into an issue where I was executing a continuous computation that returned intermediate results that I wanted to display in a React component in real time. …

I changed my insurance recently. After I retired from my job in tech, I was on COBRA. After 18 months I had to change to one of the insurance policies on my state’s exchange. There were a lot of policies to choose from, but the website made some plan recommendations…

I recently made some minor contributions to an open source project that took a GraphQL schema as its input and generated viable SQL dialects for various databases. Since I have worked with GraphQL quite a bit in the past I liked the idea of fleshing out a GraphQL API, which…

What is data visualization? Anybody who has used a diagram or a chart to illustrate numeric or other data has practiced data visualization. This post will be about a specific data visualization technique called a heatmap. A heatmap uses colors and location to characterize data. That data may be about actual heat (temperature), but…

I’m either comfortably retired or unemployed, I haven’t decided which. What I do know is that I am not yet ready for decades of hard-won knowledge to lie fallow. Still driven to learn new technologies and to develop new projects, I see the experience and results generally getting better over…

You are probably familiar with Texas Holdem, a variant of poker where two cards, known as hole cards, are dealt face down to each player, and then five community cards are dealt face up in three stages, for a total of four stages in all. …

There are several techniques for refetching data. In this article, we explore them by example. — The setup In Giving React + GraphQL a Lift with Apollo-Boost, I demonstrated how to get React application up and running quickly, and then how to incorporate the ApolloClient React components from apollo-boost. At the time of that writing, I used the Apollo Launchpad service to create a GraphQL server instance, but…