我想將3個數組壓縮成一個散列。儘管如此,哈希值已經空了。下面是示例代碼使用Ruby 1.9重現:爲什麼這個Ruby 1.9代碼導致一個空的散列?
>> foo0 = ["a","b"]
=> ["a", "b"]
>> foo1 = ["c","d"]
=> ["c", "d"]
>> foo2 = ["e", "f"]
=> ["e", "f"]
>> h = Hash[foo0.zip(foo1, foo2)]
=> {}
我想這些壓縮,然後做一些事情,如:
h.each_pair do |letter0, letter1, letter2|
# process letter0, letter1
end