miniblog.

A fun idea for a Ruby test runner: run all the tests, most relevant first, but never run for more than 1.8 seconds!

TIL that Rust has a (i) icon that shows relevant traits that a type implements. This is useful to understand that e.g. .iter() on a Vec<T> iterates with &T. https://doc.rust-lang.org/std/vec/struct.Vec.html#method.iter It looks like one of my bug reports was mentioned, so I'm delighted but wish I'd noticed earlier!

The TypeScript docs have IDE-like hover types on all the examples, which is really impressive. I also like how the second example always shows the type of the relevant part, regardless of mouse position. It's clear and mobile friendly. Screenshot from https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#literal-types