What are some examples of goroutines in Go?

What are some examples of goroutines in Go?

Goroutines are lightweight threads in Go. For example, you can use them to perform concurrent tasks like fetching data from multiple APIs.

Can you show me a code snippet using goroutines?

Sure! Here's a simple example:

package main
import (
    "fmt"
    "time"
)

func sayHello() {
    fmt.Println("Hello from goroutine!")
}

func main() {
    go sayHello() // Start goroutine
    time.Sleep(1 * time.Second) // Wait for goroutine to finish
}

What happens if I don't use Sleep in the main function?

If you don't use Sleep, the main function may exit before the goroutine has a chance to run, and you won't see the output.

Are there any best practices for using goroutines?

Yes, it's important to manage goroutines properly, use channels for communication, and avoid race conditions.