Relying heavily on init() for package initialization makes code difficult to test, hides dependency graphs, and can cause unpredictable application state behavior if initialization order matters.
Relying on sleep for synchronization. Fix: use sync.WaitGroup, channels, or context.
Misusing WaitGroup (adding after goroutine started). Fix: wg.Add before launching goroutine. 100 Go Mistakes And How To Avoid Them Pdf Download
// Classic Bug for i := 0; i < 10; i++ go func() fmt.Println(i) () // Prints unpredictable numbers, often 10.
The book organizes 100 common pitfalls into logical categories to help you improve code quality : 100 Go Mistakes (2022) - Teiva Harsanyi Relying heavily on init() for package initialization makes
Starting a goroutine without a clear plan for how it will exit.
In the rapidly evolving landscape of software engineering, Go (or Golang) has cemented itself as the language of choice for building scalable, concurrent, and efficient back-end systems. However, even with its simplicity and powerful standard library, both novice and seasoned developers frequently fall into the same traps. From mismanaging goroutines to mishandling pointers and slices, these subtle errors can lead to production crashes, memory leaks, and difficult-to-debug behavior. Misusing WaitGroup (adding after goroutine started)
The absolute best way to learn the book's concepts for free is through the author's official GitHub repository.
Beyond legal and security issues, an illegal PDF typically lacks:
Using replace directives in go.mod for production. Fix: restrict replace to local development only.