go - Catching return values from goroutines

Question

The below code gives compilation error saying 'unexpected go':

x := go doSomething(arg)

func doSomething(arg int) int{
    ...
    return my_int_value
}

I know, I can fetch the return value if I call the function normally i.e. without using goroutine or I can use channels etc.

My question is why is it not possible to fetch a return value like this from a goroutine.

Answer 1

Waitting for answers