go

2026

• Jul 20

  When Big-O Lies

  Asymptotic complexity is a promise about behavior at infinity. Most of my code never runs there — it runs at n = 4,000 on a Tuesday, and the constants I dropped are the whole story.

• Jun 27

  Go's errors.Join

  You can wrap multiple errors into one since 1.20 — great for validation that collects everything.

• Jun 18

  Go's defer runs in LIFO order

  Stacked defers unwind last-in-first-out — which is exactly what you want for paired setup and teardown.

• Jun 11

  Reading the Standard Library for Fun

  A slow walk through sort.Slice, and why the obvious implementation isn't the one they shipped.