What is the sync package in Go?

What is the sync package in Go?

The sync package in Go provides basic synchronization primitives such as mutual exclusion locks and wait groups.

Can you explain how to use a WaitGroup?

Sure! A WaitGroup is used to wait for a collection of goroutines to finish executing. You can add to the WaitGroup, then call Wait to block until all goroutines have completed.

What is the difference between Mutex and RWMutex?

A Mutex is a mutual exclusion lock that allows only one goroutine to access a resource at a time, while RWMutex allows multiple readers or one writer.

Can you give an example of using Mutex?

Certainly! Here's a simple example: you create a Mutex, lock it before accessing a shared variable, and unlock it afterward to ensure safe access.