On Mon, Oct 19, 2009 at 1:44 PM, zaxis <z_a...@163.com> wrote: > oh! thanks! But why ?
A let can introduce multiple declarations.
So this
foo = do
let x = 3
let y = 4
return $ x+ y
can also be written like
foo = do
let x = 3
y = 4 -- no let
return $ x + y
With explicit blocks:
foo = do {
let {x = 3; y = 4;};
return $ x + y;
}
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