SMRTR ProgrammingJul 17, 2025Dev.to

sync.Once — Go's simple pattern for safe one-time execution.

SMRTR summary

Go's sync.Once and its newer variants (OnceFunc, OnceValue, OnceValues) guarantee single execution of functions in concurrent environments, supporting error handling and return values for singletons, lazy loading, and safe initialization.

SMRTR provides this summary for quick context. The original article belongs to Dev.to.

Read the original article
SMRTR Programming

Get the next batch of curated stories in your inbox.

This archive is built from SMRTR newsletter stories. Subscribe for hand-picked stories without the extra noise.

Related Stories

Browse Programming
ProgrammingAug 23, 2026

Rust Glancer

Rust-analyzer's memory bloat stems from treating all 6,666 dependencies equally — a tiered, IntelliJ-style backend could fix that.