查看哈希中是否存在真实语句的最简单的最简单方法是什么？

Question

If I have this hash :

{:thursday=>false, :friday=>false, :monday=>false, :saturday=>false, :sunday=>false, :tuesday=>false, :wednesday=>false}

What is the simplest, lightest way to identify if any of them are true

Answer 1

if you're looking for "pure" true , use

hash.has_value?( true )

else use something like this

hash.detect{|key,value| value }  
# or
hash.detect{|key,value| !!value } 
# or even
if_nil = Proc.new{ "this will be called if no matching value is found" }
hash.detect( if_nil ) {|key,value| !!value }