Docker misconception: should I use ENTRYPOINT or CMD?
Docker offers two ways to control what is executed when a container starts, ENTRYPOINT and CMD. Often, they are confused and misused.
MongoDB documents are strange
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.
Lifting Kotlin testing: From JUnit to TestBalloon
There's a lot that goes into testing, but we rarely think of the most basic aspect: syntax.
Back to basics: When sets break
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.
Deep dive into Angular and Compose differences
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.
What does it mean to be a better Java? (Part 3)
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.
What does it mean to be a better Java? (Part 2)
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.
What does it mean to be a better Java? (Part 1)
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.
Don't touch Throwable
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.
The vulnerability is by design
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.