红宝石二维数组与哈希阵列与不同阵列的键哈希

Question

在Ruby中，将二维数组值转换为散列数组的最有效方法是什么？

例如，来自：

keys = ['First name', 'Last name', 'Phone number'] 
values = [['John', 'Smith', '555-1234'], ['Peter', 'Jones', '555-5678']] 

要：

[ 
    {'First name' => 'John', 
    'Last name' => 'Smith', 
    'Phone number' => '555-1234'}, 
    {'First name' => 'Peter', 
    'Last name' => 'Jones', 
    'Phone number' => '555-5678'} 
] 

Answer 1

你可以做

array_of_hashs = values.map do |ary| 
    keys.zip(ary).to_h 
end 

array_of_hashs 
# => [{"First name"=>"John", "Last name"=>"Smith", "Phone number"=>"555-1234"}, 
# {"First name"=>"Peter", "Last name"=>"Jones", "Phone number"=>"555-5678"}]