I see optional labeled arguments in docs, but not positioned argument.
And I found the option<int>
is work, like: type add = (int, option<int>) => int
But when I call this function, I need provide None explicit:
add(2, None)
Is it right?
I see optional labeled arguments in docs, but not positioned argument.
And I found the option<int>
is work, like: type add = (int, option<int>) => int
But when I call this function, I need provide None explicit:
add(2, None)
Is it right?
Hi @thomaszdxsn
I think positional arguments can not be optional.
eg:
let f = (x, y = ?, z) => x + z
f(1,2)
In the above case language could not decide if
2
should be applied to y
and wait for z
.2
should be applied to z
and execute function f
To answer your question, yes add(2, None)
None has to be provided explicitly in your case.