Create or add to an array in Ruby

Question

foo ||= [] foo << :element 

Feels a little awkward. Is there a more idiomatic way?

Answer 1

 (foo ||= []) << :element 

But meh. Is it really so burdensome to be readable?

Answer 2

You can always use the push method for any array. I like it.

 (a ||= []).push(:element)