Notes

How I discovered a cool little tip on creating string literal union types from dictionaries, and why it matters.by Gail Johnson * Feb. 09, 2026

Do you work with an API that only accept POST requests using multipart form data? This Quick Note addresses a "gotcha" that perplexed me.by Robert Banning * Sep. 10, 2025

When considering users who use a screen reader to access your site/app, you must consider both hiding and adding elements. In the rush to get to launch, it is easy to miss how we can enhance the experience of those using screen readers.by Gail Johnson * Mar. 24, 2025

Did you know you can change variables using an element's style attribute?by Gail Johnson * Mar. 03, 2025

Learn about how the CSS Stacking Context affects layering elements including ::before and ::after pseudo elements.by Robert Banning * Jan. 27, 2025

Function overloading allows functions to share the same name but have different signatures (parameters) and implementations. Understanding function overloading is an essential skill in your TS toolbelt. by Robert Banning * Jun. 04, 2024

Learn why you can't extend interfaces or intersect object types with common properties in Typescript; and how you can work around this.by Robert Banning * Mar. 08, 2024

We can style elements based on their parents. But how can we style parents based on their children. The :has() function solves this problem by allowing us to "look ahead".by Robert Banning * Nov. 01, 2023

I was sure this wasn't possible! Here is how you can use one function parameter as the default for another parameter. Follow up with a challenge. Difficulty: easyby Wiggy * Sep. 18, 2023

So you want to transform string elements in an array to integers and you know parseInt takes a string and converts it to an integer. So why will this fail?by Robert Banning * Jun. 06, 2023