How to build a Ruby hash out of two equally-sized arrays?

Question

I have two arrays

a = [:foo, :bar, :baz, :bof]

and

b = [\"hello\", \"world\", 1, 2]

I want

Answer 1

How about this one?

[a, b].transpose.to_h

If you use Ruby 1.9:

Hash[ [a, b].transpose ]

I feel a.zip(b) looks like a is master and b is slave, but in this style they are flat.