On Sun, May 24, 2015 at 3:13 PM, andrew cooke <and...@acooke.org> wrote: > > Is there a simple way, in 0.4, given the type of a tuple, to know how many > entries it has? > > When types of tuples were themselves tuples you could just use length, but > that no longer works.
``` julia> typeof((1, 2, 3)) Tuple{Int64,Int64,Int64} julia> typeof((1, 2, 3)).parameters svec(Int64,Int64,Int64) julia> length(typeof((1, 2, 3)).parameters) 3 ``` works for other parametrized types as well. > > (I don't have a desperately important use case, it's just the hacky way I > wrote some tests in some code I am bringing up-to-date) > > Thanks, > Andrew >