29. Waitgroup

In this video, we dive deep into WaitGroup in Golang and understand how to wait for multiple goroutines to complete their work. We’ll cover: • What is sync.WaitGroup? • Add(), Done(), and Wait() • How the WaitGroup counter works • Using defer wg.Done() • Processing multiple tasks concurrently • Common WaitGroup mistakes By the end, you’ll have a clear understanding of when and why to use WaitGroup in real-world Go concurrency.