Choosing an API framework depends on both your application’s needs and your development team’s strengths. In this article, we explore Express vs FastAPI by building the same API in both frameworks and examining differences in tooling, ecosystem support, and runtime behavior.
So, you want to develop a new website with spiffy apps on Android and iOS, and you want that website and your APIs to run in Node Express. It sounds like a lot of work to write the website in React (or Flutter or whatever the language de jour is), the Android app with Android Studio, and the iOS app with Xcode…
Ever wondered how you can make your Java code cleaner and easier to maintain? Writing concise, readable code is a challenge for every developer, but Lambda expressions in Java, introduced in Java 8, have transformed the way we approach this. Lambdas aren’t just a minor syntax tweakโthey significantly simplify how we handle functional interfaces and anonymous classes. By using Lambdas, …
CSS Grid has been the new, cool kid on the block for a few years now. Grid, with its layout algorithm, has given us so many more capabilities in how we can layout and arrange content in our applications.
CSS Grid allows us to define layout patterns in concise and refined ways. That being said, we simply cannot look at CSS Grid by itself without knowing how other key features of modern CSS (like Math expressions) work with CSS Grid. This can allow us to push the boundaries and create more efficient layouts.
These new layout superpowers enable us to start to move past the constraints and limitations that media queries have.
In this blog, weโll present a simple arithmetic expression parser implemented through an Antlr4 parser generator. It will be able to take in an input string (such as 2+4+-4+-2*10%9*7) to produce the result (-12.0).
You may be thinking, “Great, but whatโs the point?” Well, to answer your question, as simple as this example may seem, the principles involved actually extend to use cases such as DSLs, transpilation, and anything else expressible by grammar rules.
This post has two parts. In part 1, weโll discuss the background components of a parser. In part 2, weโll cover building the demo and running it. If you already understand grammar parsing, you could skip part one.