1.1 KiB
1.1 KiB
title
| title |
|---|
| Goroutines |
Goroutines
Goroutines are functions or methods that run concurrently with other functions or methods. Goroutines can be thought of as light weight threads. The cost of creating a Goroutine is tiny when compared to a thread.
Prefix the function or method call with the keyword go and you will have a new Goroutine running concurrently.
Let's look at an example:
func say(s string) {
fmt.Println(s)
time.Sleep(100 * time.Millisecond)
fmt.Println(s)
}
func main() {
go say("hello")
say("world")
}
Output:
world
hello
hello
world
You can observe that since we called say("hello") in a goroutine, it'll run concurrently and will print the output in no particular order in regards to the regualar function call say("world").