The values return from functions can
be bound to variables. For example,
if we create a variable named alfa
of type i32
we can set it to
the return value of a widget
function that has the same time.
Here's a program which outputs:
alfa is 9
fn main () {
let alfa = widget ();
println! ("alfa is {}" , alfa);
}
fn widget () -> i32 {
3 + 6
}
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