TIL

• February 8, 2025

  go

  Why does Go's io.Reader have such a weird signature?

  Understand why io.Reader takes a byte slice parameter instead of returning one. Learn about heap allocations and buffer reuse in Go streams.

• August 23, 2023

  go

  Limit goroutines with buffered channels

  Control goroutine concurrency with buffered channels as semaphores. Prevent resource exhaustion with backpressure patterns in Go workers.

• August 18, 2023

  go

  Interface guards in Go

  Use compile-time interface guards to verify type conformity in Go without runtime overhead. Learn the var _ Interface = (*Type)(nil) pattern.

• August 10, 2023

  go

  Go structured logging with slog

  Master Go 1.21's log/slog package for structured logging with levels, JSON output, and attribute grouping. No third-party libraries needed.