What are common errors when using WaitGroup in Go?

What are common errors when using WaitGroup in Go?

Some common errors include forgetting to call Done(), using WaitGroup after it's been reused, and race conditions.

Can you explain why forgetting to call Done() is a problem?

Forgetting to call Done() can lead to deadlocks, as the WaitGroup will never reach zero, causing the program to hang.

How can I avoid race conditions with WaitGroup?

To avoid race conditions, ensure that shared resources are properly synchronized and accessed only by one goroutine at a time.

Are there best practices for using WaitGroup?

Yes, always call Done() in a defer statement right after starting a goroutine, and avoid reusing WaitGroups.