TIL, 2017-05-30

.present? and .blank? can be the interface method that is used when detecting falsity: false, nil, [], {}, ‘’, and ‘ ‘ return false when present?
.present? and .blank? are also just available in Rails.
nil doesn’t respond to empty?.
Skype shortcuts: Cmd-Shift-M : Mute.
Ruby pluralize: first argument for the singular, second for the plural (IKR).