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overreacted - A blog by Dan Abramov
Latest entries from overreacted - A blog by Dan Abramov.
A Social Filesystem
Formats over apps.
Introducing RSC Explorer
My new hobby project.
Hire Me in Japan
I'm looking for a new job.
How to Fix Any Bug
The joys of vibecoding.
Where It's at://
From handles to hosting.
Open Social
The protocol is the API.
A Lean Syntax Primer
Programming with proofs.
Beyond Booleans
What is the type of 2 + 2 = 4?
The Math Is Haunted
A taste of Lean.
I'm Doing a Little Consulting
Personal update post.
Suppressions of Suppressions
I heard you like linting.
How Imports Work in RSC
A layered module system.
RSC for LISP Developers
Quoting for modules.
Progressive JSON
Why streaming isn't enough.
Why Does RSC Integrate with a Bundler?
One does not simply serialize a module.
One Roundtrip Per Navigation
What do HTML, GraphQL, and RSC have in common?
Static as a Server
You wouldn't download a site.
RSC for Astro Developers
Islands, but make it fractal.
Functional HTML
Tags on both sides.
What Does "use client" Do?
Two worlds, two doors.
Impossible Components
Composing across the stack.
JSX Over The Wire
Turning your API inside-out.
React for Two Computers
Two things, one origin.
The Two Reacts
UI = f(data)(state)
A Chain Reaction
The limits of my language mean the limits of my world.
npm audit: Broken by Design
Found 99 vulnerabilities (84 moderately irrelevant, 15 highly irrelevant)
Before You memo()
Rendering optimizations that come naturally.
The WET Codebase
Come waste your time with me.
Goodbye, Clean Code
Let clean code guide you. Then let it go.
My Decade in Review
A personal reflection.
What Are the React Team Principles?
UI Before API.
On let vs const
So which one should I use?
What Is JavaScript Made Of?
Getting a closure on JavaScript.
How Does the Development Mode Work?
Dead code elimination by convention.
Algebraic Effects for the Rest of Us
They’re not burritos.
Preparing for a Tech Talk, Part 3: Content
Turning an idea into a talk.
Name It, and They Will Come
A change starts with a story.
Writing Resilient Components
Four principles to set you on the right path.
A Complete Guide to useEffect
Effects are a part of your data flow.
How Are Function Components Different from Classes?
They’re a whole different Pokémon.
Coping with Feedback
Sometimes I can’t fall asleep.
Fix Like No One’s Watching
The other kind of technical debt.
Making setInterval Declarative with React Hooks
How I learned to stop worrying and love refs.
React as a UI Runtime
An in-depth description of the React programming model.
Why Isn’t X a Hook?
Just because we can, doesn’t mean we should.
The “Bug-O” Notation
What is the 🐞(n) of your API?
Preparing for a Tech Talk, Part 2: What, Why, and How
We need to go deeper.
The Elements of UI Engineering
What makes UI engineering difficult?
Things I Don’t Know as of 2018
We can admit our knowledge gaps without devaluing our expertise.
Preparing for a Tech Talk, Part 1: Motivation
Here’s my recipe for a good talk idea.
Why Do React Hooks Rely on Call Order?
Lessons learned from mixins, render props, HOCs, and classes.
Optimized for Change
What makes a great API?
How Does setState Know What to Do?
Dependency injection is nice if you don’t have to think about it.
My Wishlist for Hot Reloading
I don't want a lot for Christmas. There is just one thing I need.
Why Do React Elements Have a $$typeof Property?
It has something to do with security.
How Does React Tell a Class from a Function?
We talk about classes, new, instanceof, prototype chains, and API design.
Why Do We Write super(props)?
There’s a twist at the end.