Coding Posts

• Avoid Runtime Errors with Optionals

  Coding Aug 19, 2019

  Learn how to use Optionals properly with flatMap avoiding null pointer exceptions.

  • Java

• How future languages will prevent Log4Shell

  Coding Dec 22, 2021

  Learn how modern programming languages like Unison and Koka avoid vulnerabilities like Log4Shell in Java by preventing third-party code from executing side-effects.

  • Java

• Implementing a light/dark mode toggle with pure JS/CSS

  Coding Jan 4, 2022

  Learn how to implement a minimal light/dark mode toggle in Eleventy with pure JavaScript and CSS.

  • Eleventy
  • JavaScript

• Identifying bad code with function usage patterns

  Coding Jan 13, 2022

  Learn how to look at the call patterns of functions to identify code smells and refactor bad Java, TypeScript and JavaScript code.

  • JavaScript

• Building a 1000 line Java program in 6 lines of Haskell

  Coding Jan 15, 2022

  Let's disassemble an overly expressive six-line algorithmical Haskell program. I walk you through all the tricks, weirdness and beauty.

  • Haskell

• Resolve a list of promises synchronously

  Coding Apr 15, 2022

  Learn how to execute and resolve a list of JavaScript promises synchronously instead of in parallel with Promise.all.

  • Node.js
  • TypeScript
  • JavaScript

• Custom-themed Mermaid diagrams in Eleventy

  Coding Jun 3, 2022

  Learn how to use Mermaid diagrams embedded in your Markdown files in Eleventy. Globally define a custom theme that is used in each diagram.

  • Eleventy
  • JavaScript

• Showing Plausible view counts in an Eleventy blog

  Coding Jun 8, 2022

  Learn how to integrate the retrieval of page view stats from the Plausible Analytics API into your Eleventy build process to show them in your blog or website.

  • Eleventy
  • Plausible

• Rendering a file structure with Prism in Eleventy

  Coding Jun 15, 2022

  Learn how to display a file system structure nicely on your Eleventy website with Prism.

  • Eleventy
  • JavaScript

• Injecting an HTML snippet into every 11ty post

  Coding Jul 21, 2022

  Learn how to inject a rendered Nunjucks template into every post of your Eleventy blog.

  • Eleventy
  • JavaScript

• Best of Lodash

  Coding Jun 2, 2023

  A collection of Lodash functions that are still useful in modern JavaScript.

  • Lodash
  • TypeScript

• Declaring over updating RxJS observables

  Coding Jun 2, 2023

  Declare how your RxJS observable is computed from other observables. Don't update other observables when your observable changes.

  • RxJS
  • TypeScript
  • Angular