Ignoring files you've already committed
Cache invalidation is tricky to automate.
Michael Uloth
Software engineer helping scientists discover new medicines at Recursion.
Latest posts
Converting a list of JS objects into a parent-child tree
A fun nesting puzzle.
A "!" prefix makes any Tailwind CSS class important
A delightfully succinct bit of syntax.
Tmux's version command is -V
Probably the last option you’d think to try.
SELECT DISTINCT outputs a column's unique values
A very useful keyword when you’re trying to understand sets of values.
It's tricky to statically type a "pipe" function in Python
Less tricky once you understand overloads better.
An iOS Shortcut can add data to a Google Sheet
Workflows you can complete from your phone are seriously underrated.
How to query a BigQuery table from Python
Doesn’t take much to pull in a whole lotta data.
CloudFlare sells domain names at cost
Consumer pricing doesn’t often go down.
Homebrew packages might install dependencies
Brew packages install brew packages.
Shell functions don’t need parentheses
Just in case you see this in the wild and are confused.
You can run shell scripts in tmux.conf
It’s a nice way to integrate whatever behaviour you like.
Why unknown types are useful
Sometimes you want the type checker to help you avoid making assumptions.
Using "object" as an unknown type in Python
Python's base class (and base type) can help keep you safe when your data could be anything.
Defining a custom unknown type in Python
How to replicate TypeScript's unknown type with a generic type variable.
Undoing a merge to your main git branch
How to roll back changes by reverting commits
Switching configs in Neovim
How to maintain multiple Neovim configurations and switch between them
Adding a pull request template to your GitHub repo
How to pre-fill the blank description with helpful prompts.
Dramatically reducing video file size using FFmpeg
How to shrink a video so it’s small enough to upload.
The translateZ trick
How to smoothly animate CSS filters in Safari by engaging the GPU.
What is a Factory Function?
Kyle Shevlin on how to use factory functions as an alternative to classes.
Writing Great Alt Text
Jake Archibald on how to write better image alt text.
Levels of Abstraction in Testing
Sam Selikoff on how to make unit tests easier to read.
Using Slack to report data entry errors to content editors
How the ".com" team at ecobee uses Slack as an alert system.
The filter(Boolean) trick
How to remove empty values from an array.
Using GraphQL with Gatsby
How to write GraphQL queries in a Gatsby project.
Adding content to a Gatsby project
The pros and cons of different approaches.
Writing CSS-in-JS in a Gatsby project
How CSS-in-JS libraries like CSS Modules and Styled Components make it easier to safely add and remove styles.
Writing CSS in a Gatsby project
How to write traditional CSS in a Gatsby project.
Wrapping pages in a layout component
How to share common content and styling between pages.
Adding pages to a Gatsby project
How to add pages to a Gatsby project and navigate between them.
Writing HTML in a Gatsby project
How to use React to split HTML into reusable components.
Gatsby's default files and folders
What's going on inside each folder in a Gatsby project.
Starting a new Gatsby project
How to start a Gatsby project on your computer.
What is Gatsby?
How Gatsby combines the best features of React and HTML.
Introducing Gatsby Tutorials
A new, community-updated directory of Gatsby.js learning resources.
How to set up a Mac for web development
What to install on your Mac before starting a JavaScript project.