MongoDB stores all its information in its own binary format called BSON. Lately, I've been writing my own implementation of BSON, and so I've been studying its specification. Here are a few things I learned about BSON documents.
Which Kotlin test framework should you use in 2025? Is there still room to innovate?
Sets are one of the most basic data structures of modern programming. Unlike arrays, sets require the data to confirm to a few invariants. Let's review what they are, and what happens when we break them.
Angular and Compose are both declarative UI frameworks and can both target the web ecosystem. Still, their approach is very different. Let's take a look at the similarities and the differences.
This week, we explore software architecture: interfaces, classes, objects and inheritance. We grade Kotlin through Java's prism, and thus mainly focus on object-oriented design.
Last week, we studied ways in which Kotlin improves upon Java when it comes to creating and destroying objects, eliminating Java pitfalls and footguns. This week, we discuss the common supertypes: Object, Any and Comparable.
In the old days, programming languages would come and go. In the modern age, languages remain for decades as platforms on top of which new ecosystems are born, never to be dethroned. Java is the venerable sage of the server-side world—but new languages still attempt to take it on.
Throwable is the supertype of all things that can be thrown. It often appears in codebases as an upper bound for error handling. Here's why you shouldn't do it.
We should all strive to write code that is harder—if not impossible—to exploit. Sometimes, however, the vulnerability comes from places we thought we could trust.
When I talk about KotlinJS, people often ask me “Why not just TypeScript?”. This article compares the type system and standard libraries to understand how different the languages are.