在Ruby中哈希delete_if

Question

我正在尝试从散列中删除键值对，散列的值小于散列中最高键值对的值。示例：如果我的哈希是{:Jan => 3, :Feb =>4, :Mar =>4}，我想删除:Jan => 3条目。我正在尝试delete_if进行比较而无济于事。

def highestvalue(myhash)
  myhash.delete_if { |k,v| v < v}
  print myhash
end

months = {:Jan => 3, :Feb =>4, :Mar =>4}
highestvalue(months) 

Answer 1

def highestvalue(myhash)
  max = myhash.values.max
  myhash.delete_if { |k, v| v < max }
end