Javi's Dev Blog

Javier Aguilar

Javier Aguilar

25 followers

Senior Full Stack Developer in the ☁️

Building supereffective.gg, a Pokémon community powered by Next.js

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Build your own Full-Stack framework

Mar 19, 20249 min read94 views

Feeling the web developer fatigue? You are not alone! · The state of the Web ecosystem in 2024 Over the last 3 to 4 years, we've witnessed an explosion...

Build your own Full-Stack framework

Styling a sticky element when it gets pinned using React

Mar 30, 20241 min read13 views

In this case, using the scroll event offers more flexibility than using the IntersectionObserver API · https://codepen.io/itsjavi/pen/OJGxZeq

Styling a sticky element when it gets pinned using React

Mocking the IntersectionObserver in Jest for testing React components

Oct 22, 20233 min read180 views

The IntersectionObserver is a powerful API for tracking elements' visibility within the viewport. Many modern web applications use it to implement...

Mocking the IntersectionObserver in Jest for testing React components

StoryLite 0.6.0 released

Aug 26, 20231 min read18 views

The addon system has been completely rewritten, so now you can also provide your own or turn off default ones. The UI also looks much better,...

StoryLite 0.6.0 released

Introducing StoryLite ⚡️, a lightweight alternative to StoryBook

Aug 11, 20235 min read3.8K views

Lightweight drop-in app for rapid React component development and visualisation · As developers we understand the importance of efficiently testing and...

Introducing StoryLite ⚡️, a lightweight alternative to StoryBook

How to test the Error cause with Jest and TypeScript

Feb 9, 20233 min read1.6K views

Extending Jest in TypeScript to write custom matchers for testing additional Error properties. · When developing applications, it's essential to handle...

How to test the Error cause with Jest and TypeScript