I was reading this doc and saw the following fragment:
The := syntax is shorthand for declaring and initializing a variable, e.g. for var f string = "short" in this case.
f := "short"
fmt.Println(f)
The point is: is it only for strings? Or is it dymanic enough to understand what datatype should it store?
And plus: isn't it the same of var f = "short"?
Of course it infers the obvious type(s) returned by the expression on the right side.
The specification gives those examples :
i, j := 0, 10
f := func() int { return 7 }
ch := make(chan int)
r, w := os.Pipe(fd) // os.Pipe() returns two values
_, y, _ := coord(p) // coord() returns three values; only interested in y coordinate
Note that it's not dynamic : everything happens at compile time, the type(s) being given by the right part expression.