Goroutines and channels - simple!
An early try at programming-with-cartoons, in the spirit of _why’s Poignant Guide. Current work is at home.
A few animals marked up an introduction to goroutines and channels from https://go.dev/talks/2012/concurrency.slide#20 ! You can copy paste the below into a file, say simple.go, and run it with go run simple.go
{% highlight golang linenos %} package main
import (“fmt” “math/rand” “time”)
func main() { c := make(chan string) go boring(“boring!”, c) for i := 0; i < 5; i++ { fmt.Printf(“You say: %q\n”, <-c) // Receive expression is just a value. } fmt.Println(“You’re boring; I’m leaving.”) }
func boring(msg string, c chan string) { for i := 0; ; i++ { c <- fmt.Sprintf(“%s %d”, msg, i) // Expression to be sent can be any suitable value. time.Sleep(time.Duration(rand.Intn(1e3)) * time.Millisecond) } } {% endhighlight %}
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