Writing

Go back to fundamentals: HTML label

Rediscover the power of the HTML label element by looking at how we can use it and its impact on accessibility.

#5 Unit test a state machine

Unit test state machines by leveraging their deterministic nature. Complete the coverage with integration and e2e testing.

#4 Invoke and spawn utility machines

Rely on XState’s Actor model to manage concurrency by invoking or spawning actors. Invoke for guaranteed actors and spawn for dynamic ones like worker pools. Actors communicate through events, ensuring modular and scalable systems.

#3 Type XState with the Typegen

Use XState's Typegen to automatically generate strong types for your machines by enabling it in your code, naming actions, delays, guards, and services for better TypeScript integration. Rely on Stately's VS Code extension or XState CLI for development and production builds.

#2 Model a task queue with XState

Implement a task queue in XState by processing tasks individually, queuing new tasks while busy, automatically triggering the next task with eventless transitions, and simplifying the design by globally handling task addition across all states.

#1 The journey to learning XState

Learn XState efficiently by exploring its documentation, taking courses, studying examples, and practicing with real projects to enhance your understanding and coding skills.

#0 The State of XState Report

My report is now public! Read it online now.

Create videos as React apps with Remotion

Create dynamic videos with Remotion using HTML, CSS, JavaScript, and React. As a tech content creator, I have found many use cases and showcase them today.

Expressive Code: My go-to code syntax highlighter

A new syntax highlighter, Expressive Code, makes it a no-brainer to highlight code. It has many wanted features by default, like line markers and multi- themes support, and works in any build system.

My first impressions of Panda CSS

Tailwind CSS vs. Panda CSS: A comparison of styling solutions for the web, covering type safety, merging styles, and component variants.

Astro goes full on View Transitions

Explore Astro's latest features: lightweight SPA router with cross-page animations, form support, and simplifying web development tools.

Share state across Astro Islands with Nano Stores

Astro Islands shouldn't share state by default because they don't necessarily have the same lifetime. However, when sharing data across some of them is required – like the authenticated user's data – Nano Stores is helpful.

Refer to a class definition instead of one of its instances in TypeScript

Catch JavaScript errors in React applications with an Error Boundary

Always set validity duration of presigned URLs with AWS S3 SDK

Fix Xcode Command Line Tools not working while installed

Create a proxy state machine to drive CSS transitions on state changes with XState

In order to add some behaviors to a state machine, we can change it, or we can add another machine in front of it to delegate some responsibilities. In this article I present the machine we added in front of our main machine to manage the load button of our Turing machine visualizer.

Create stale data indicator with XState

The are few things as boring as not knowing the state of an application. Is this document saved or should I Ctrl+S? In this article I present the stale data indicator we display on our Turing machine visualizer when visualizer is not in sync with inputs.

Prevent flickering loading animation with XState

Loading indicators tell users that something is happening and will complete soon. They exist to improve UX, but they can worsen UX if they are directly hidden after underlying HTTP requests resolve. In this article I share XState patterns I used to prevent this issue in our Turing machine visualizer.

Orchestrate request for server-side execution of Turing machine with XState

We built a Turing machine visualizer but it does not execute machines itself—it's the job of an Erlang server. The visualizer needs to make a request to execute machines, and XState is the perfect tool to orchestrate this in combination with other behaviors of the visualizer.

Control tape of Turing machine visualizer with XState

The execution of a Turing machine with an input produces a list of operations on a tape, that are made to be visualized. I built such a visualizer with XState, and used cool patterns to visualize operations on the tape.

Back up code with another Git remote

Storing verification tokens into database

Linking of native libraries of an Expo app in a monorepo

Handle logic at the right place in React

Deciding where to put logic code in React applications is crucial to keep a codebase clean and maintainable, and even functional. Rethinking the place of the logic to go from top to bottom can help a lot, and it's the main purpose of XState.

Stress testing with Artillery

Create a named group in a JavaScript RegExp

Stop a Docker container and remove its volumes

Simplify data fetching in SvelteKit with page endpoints

Page endpoints are a new way to simplify fetching data from endpoints in SvelteKit. They reduce the amount of code needed to fetch data, and prevent to forget handling HTTP errors.

Override version of a dependency of another dependency with npm

Move recent commits to another branch

Test NativeBase's `Select` component

A subquery can not be the `DEFAULT` value of a column in PostgreSQL

Git Worktrees to manage several workspaces for the same repository

Links to resources on same domain with SvelteKit

Generate RSS Feed with SvelteKit

RSS Feeds let readers know about new content on your website. SvelteKit provides endpoints that can be used to generate RSS feeds.

Recreate Testing Library waitFor function with XState

Testing Library brings a formidable waitFor function to your tests to wait for a condition to be met before a timeout is reached. But sometimes we need such a function outside of client-side tests.

Create state machines in Erlang

Erlang is a functional language that implements pattern matching. We can make use of this great feature to create declarative state machines.

Temporal and Actor Model

Temporal follows Actor Model to create workflows that are just plain code functions and plain actors.

Interpret SCXML state machines with XState

SCXML is an universal format to describe state machines. XState can be used to interpret them in JavaScript.

External transition to child state

All transitions are external by default with XState, except transitions with a relative target, that are internal. It can lead to bugs when not understood properly.

Parallel states and events with XState

Parallel states are an advanced feature of statecharts that allows to run a set of child states concurrently. We can even synchronize them easily by using normal XState events.

YouTube player for React Native that also works on the Web

The de facto library to use a YouTube player with React Native is react-native-youtube-iframe. Although is works perfectly on native platforms, it has some issues when used on the Web.

Expo in a monorepo

An Expo application can not be integrated inside a monorepo without doing some extra work. Fortunately the Expo team has published some tools to ease our job.

My commitment to learn in public

I commit to learn in public by sharing my knowledges and showing my mistakes to everybody everyday.