如何连接条件

Question

有没有更优雅的方式在Ruby中编写它？

def tutorial_completed?
  people.any? && projects.any? && invoices.any?
end

Answer 1

def tutorial_completed?
  [people, projects, invoices].all?(&:any?)
end

Answer 2

我会这样做：

[people,projects,invoices].all? {|i| i.any? }

<强>演示

 people = [true]
 projects = [false]
 invoices = [true,12]
 [people,projects,invoices].all? {|i| i.any? }
 # => false