2016-03-12-enumerable-shortcuts.md 600 B
title: Enumerable Shortcuts
categories: bits
You can call a method on every item of an enumerable like
[1, 2, 3].each { |num| num.to_s }
Which can be further reduced to:
[1, 2, 3].each(&:to_s)
Unfortunately this method doesn't work if you want to achieve something like
%w[hi how are you].each { |word| puts word }
Instead, you would have to use something like:
%w[hi how are you].each(&method(:puts))
Beware that parenthesis are required around :puts. Also, this only works if
each element is passed as the given method's argument.