https://nalar.dev/tags/best-practices/ Recent content in Best Practices on Nalar Hugo en-us Tue, 01 Sep 2026 00:00:00 +0700 https://nalar.dev/go-error-wrapping-errors-is-errors-as/ Tue, 01 Sep 2026 00:00:00 +0700 https://nalar.dev/go-error-wrapping-errors-is-errors-as/ <p>Errors often cross several layers of a Go application. A low-level function may know that a file is missing, while a higher-level function needs to add context about which operation failed. Go error wrapping lets you add that context without losing information callers need for reliable handling.</p> <h2 id="why-error-strings-are-fragile">Why error strings are fragile</h2> <p>Do not make program logic depend on error wording. Adding a filename or changing punctuation can break string comparisons even when the underlying condition is unchanged. Prefer semantic checks:</p>