Combining Maps of Iterables in Scala Without Replacing on Key Conflict

What’s a way of combining Maps of Iterables without losing information? In Scala, it’s common to combine or concatenate Iterables, usually something like this: val a = Vector(1, 2, 3) val b = Vector(4, 5, 6) val c = a ++ b This takes Vector a and concatenates it with Vector b. The resulting Vector […]

How to Test Storybook with Cypress

Storybook can be really useful for a team developing a web app. But like any software, it’s prone to rot when left untested. On my current project, I finally have a good way to test it. Here’s how!

Separating Data with a Generic Recursive Partition Function in Scala

On a recent project, I took a list of items and grouped them into categories using a recursive partition function. Today I’ll explain that concept and show you how to implement it in Scala. As my example, I’ll be categorizing fun, delicious M&M’s by color. (Because, as everyone knows, blues are best and should be […]

Increasing the Value of CSS Modules with Typescript

There are many methods for managing styles in web applications, all of which attempt to prevent styles from cascading to elements that don’t need them. CSS Modules are an excellent tool for isolating application styles to the components that use them. And with the power of Typescript, we can make them even better. I’ve put […]

Maintaining Order with Apollo Query Hooks

On my current React project, we are using the hooks provided by Apollo to fetch and mutate data with GraphQL. One of the components I wrote had a query that relied on data from a previous query. The component looked similar to this example: export const BadSelect = () => { const [selectedPokemon, selectPokemon] = […]

How to Access Session Data within a Hot Chocolate Resolver

Hot Chocolate is a GraphQL server that can integrate with ASP.NET Core, but it doesn’t participate in the same dependency injection you may be used to. That means it’s not immediately clear how to get at the Session or User objects. Normally, you can access these things through an HttpContext. On a controller, you read […]

10 Things You Need to Understand about Swift

When I first started working in Swift, I assumed it was like an Objective-C clone with cleaner syntax. I was wrong. Swift has several idiosyncrasies and potential pitfalls you need to be aware of — whether your background is in Objective-C or some other language. Here are ten lessons I’ve learned about what sets Swift […]

Scrollable Grid with Just-in-Time Loading – Part 3: Using React Table with React Window

In the first part of this series, I described how to just-in-time load and incrementally render chunks of data. I used React Window, which can render data in windowed chunks, reducing the initial load time and the amount of memory used to store DOM nodes. React Window is often used with a data fetching library […]

Setting Up an Azure Functions Dependency Injection Context for Request Tests

I’ve been trying to figure out how to do some request testing on an Azure Functions project. My goal is to submit HTTP requests with JSON bodies, have them handled by the Functions running through as much of the real production code as possible, and then get back an HTTP response with a JSON payload. […]

Firebase with Unity – Part 2: User Accounts with Authentication

Firebase authentication is an easy way to have users sign in to your Unity app. Last time, I showed you how to set up Firebase in Unity. Today, I’ll describe how to maintain an authentication state in your app and make calls to Firebase that allow users to create an account, sign in, and sign […]

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