https://nalar.dev/tags/determinism/ Recent content in Determinism on Nalar Hugo en-us Wed, 16 Sep 2026 00:00:00 +0700 https://nalar.dev/go-map-iteration-order-is-not-stable/ Wed, 16 Sep 2026 00:00:00 +0700 https://nalar.dev/go-map-iteration-order-is-not-stable/ <p>A <code>range</code> over a Go map can visit the same entries in a different order on consecutive iterations. The language specification leaves map iteration order unspecified and gives no guarantee that a later pass over an unchanged map will repeat an earlier sequence.</p> <p>That contract is stronger than saying that maps are merely unsorted. An unsorted container could still expose a stable insertion-dependent or storage-dependent sequence. A Go program cannot assign such meaning to map traversal.</p>