[:b, :c].insert(0, :a) # => [:a, :b, :c] [:b, :c].prepand(:a) # alias for unshift # => [:a ,:b, :c] [:b, :c].unshift(:a) # => [:a ,:b, :c]
[:b, :c].insert(0, :a) # => [:a, :b, :c] [:b, :c].prepand(:a) # alias for unshift # => [:a ,:b, :c] [:b, :c].unshift(:a) # => [:a ,:b, :c]