What are some effective concurrency tools in Go?

What are some effective concurrency tools in Go?

Go provides several concurrency tools like goroutines, channels, and the sync package. Goroutines are lightweight threads, while channels allow communication between them. The sync package offers synchronization primitives like WaitGroup and Mutex.

Can you explain how goroutines work?

Goroutines are functions that run concurrently with other functions. They are managed by the Go runtime, which allows thousands of them to run simultaneously without the overhead of traditional threads.

What are channels used for?

Channels are used for communication between goroutines. They allow you to send and receive messages, helping to synchronize execution and share data safely.

How do I use a WaitGroup?

A WaitGroup is used to wait for a collection of goroutines to finish executing. You add the number of goroutines to the WaitGroup, and then call Done() when each goroutine completes. Finally, you call Wait() to block until all goroutines have finished.