Thanks for the reply. > Yes, but a lot of things are arbitrary in any language. I disagree, but to each their own. > Yes, you have to read some documentation

Thanks for the reply. > Yes, but a lot of things are arbitrary in any language. I disagree, but to each their own. > Yes, you have to read some documentation, not everything can be immediately obvious. I do not disagree, but I wanted to know the rationale behind it ("map!(a => a.idup)")!