#Stdlib

We're excited to share that Google Summer of Code 2026 is officially underway and that stdlib has...

A philosophy of simplicity, modularity, consistency, and craft. Over the past several years,...

slog past the basics: Group for nested logs, ReplaceAttr for PII redaction, custom Handler for routing + OTel trace IDs.

Go 1.21's sync.OnceFunc / OnceValue / OnceValues vs sync.Once. When each is the cleanest, the error-return trap, init patterns.

context.WithoutCancel keeps work alive past caller cancellation while keeping context values. Pattern, the deadline trap, and where Background fails.

Go's maps stdlib package: 8 functions that delete handwritten helpers. Keys/Values/Clone/Copy/DeleteFunc/Equal + the iter.Seq trap.

Go 1.21 and 1.22 killed two ugly patterns: nested-if sort comparators and arrow-shaped fallback chains. Here's the migration.

Every Go codebase carries a folder of slice helpers written before Go 1.21. Here are the 11 stdlib functions that delete most of them.

In high-throughput Python services processing 50,000+ requests per second, logging overhead can...