[julia-users] Re: `collect` makes array, `...` makes tuple?

[Matt Bauman]

I think it's best to think of `...` as expanding into an argument list.  So 
`[A...]` makes an array, `Dict(X...)` forms a dictionary, and `tuple(A...)` 
makes a tuple.  On 0.4 you can even say `(A...,)` to splice the arguments 
directly into the tuple syntax.