检查项目是否包含在数组或散列中

Question

在Ruby中是否可以使用这样的东西

if @subscription.state = ['trail', 'active']
   #Do something 
end

应该是自我解释的.

Answer 1

也许:

['trail', 'active'].include?(@subscription.state)

Answer 2

你可以使用include?ruby的方法Array

if ['trail', 'active'].include?(@subscription.state)
  #do something
end