在ruby中，我们如何将两个给定的哈希合并为单个哈希，并用两个值中较大的值替换重复的键值

Question

例如:-

hash1={"a"=>"123", "b"=>"432"}
hash2={"a"=>"439","c"=>"987"}

输出应该是:-

{"a"=>"439","b"=>"432","c"=>"987"}

Answer 1

hash1 = { "a" => "123", "b" => "432" }
hash2 = { "a" => "439", "c" => "987" }

代码

h = hash1.merge(hash2) do |k, f, s|
f.to_i > s.to_i ? f : s
end
p h

输出

{"a"=>"439", "b"=>"432", "c"=>"987"}