What are some examples of concurrency in Go?

What are some examples of concurrency in Go?

In Go, concurrency is achieved using goroutines and channels. For example, you can use goroutines to run multiple tasks simultaneously.

Can you give me a code example of 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 a new goroutine
    time.Sleep(1 * time.Second) // Wait for goroutine to finish
}

What are channels and how do they work?

Channels in Go are used to communicate between goroutines. They allow you to send and receive values, ensuring safe data exchange.

Can you show me an example of using channels?

Absolutely! Here's an example:

package main
import (
    "fmt"
)

func main() {
    messages := make(chan string)

    go func() {
        messages <- "Hello from channel!"
    }()

    fmt.Println(<-messages) // Receive message from channel
}