LF Bittencourt - Notes

Note from 08/19/2026 at 22:06

2026-08-20T01:06:04.262Z

To rebase a branch onto a new base while preserving merge bubbles, run git rebase --rebase-merges <new-base>.

Note from 08/17/2026 at 16:55

2026-08-17T19:55:11.540Z

— Li a bandeira.

— O que ela diz?

— “Você não é tão bom assim”.

Note from 08/14/2026 at 10:42

2026-08-14T13:42:33.581Z

one exception "first test" dislike by grug: when bug found. grug always try first reproduce bug with regression test then fix bug, this case only for some reason work better

— The Grug Brained Developer

Note from 08/01/2026 at 18:49

2026-08-01T21:49:11.392Z

Exhaustiveness checking:

type Shape = Circle | Square;
 
function getArea(shape: Shape) {
  switch (shape.kind) {
    case "circle":
      return Math.PI * shape.radius ** 2;
    case "square":
      return shape.sideLength ** 2;
    default: {
      const exhaustiveCheck: never = shape;
      return exhaustiveCheck;
    }
  }
}

Note from 07/30/2026 at 18:04

2026-07-30T21:04:03.399Z

To get a list of all the files changed between two points in Git history, use git diff main...<HEAD, branch-name or whatever>.

Note from 07/16/2026 at 10:49

2026-07-16T13:49:21.082Z

Jest is full of niceties. Today I've discovered it.failing. It's for writing tests that are expected to fail.

Note from 07/08/2026 at 10:03

2026-07-08T13:03:11.682Z

One thing Claude excels at: creating Bash scripts.

Note from 07/03/2026 at 14:11

2026-07-03T17:11:45.825Z

Last exit code on macOS: echo $?.

Note from 07/01/2026 at 10:36

2026-07-01T13:36:49.826Z

To delete a AWS secret immediately, run aws secretsmanager delete-secret --secret-id my-secret --force-delete-without-recovery.

Note from 06/28/2026 at 10:20

2026-06-28T13:20:36.076Z

That's why they sell music to kids, because no one ever forgets their teenage summer, and you’re always gonna go back to the music of your teenage summer. So, nostalgia is pretty built in, you know what I mean? That's why they want young people, you know, everybody will go running screaming why tell sell music to kids, or cigarettes to kids, or anything to kids, because once you got a kid, you got'em for life.

Johnette Napolitano, in https://www.youtube.com/watch?v=ISskfy3FKhc