在一个哈希中将红宝石哈希中的键值分组并打印特定值

Question

这是我的哈希：

{"Specialty"=>"Other (note in description);Medical;Dental;Vision", "Value"=>"https://www.example.com/ca"}
{"Value"=>"P.O. BOX 60007 LOS ANGELES, CA 90060"}
{"Specialty"=>"Pharmacy;Medical", "Value"=>"800-824-0898"}
{"Specialty"=>"Urgent Care;Medical", "Value"=>"800-700-9186"}
{"Specialty"=>"Urgent Care;Emergency Care;Medical;Chiropractor;Acupuncture", "Value"=>"800-677-6669"}
{"Specialty"=>"Pharmacy;Medical", "Value"=>"https://www.example.com"}
{"Specialty"=>"Claims", "Value"=>"https://www.example.com/consumer/claims/claimsoverview"}
{"Specialty"=>"Urgent Care;Emergency Care;Medical;Chiropractor;Acupuncture", "Value"=>"https://example/example/apps/services/www/ABCBS/mobilewebapp/default/index.html#/providers/search"}
{""Specialty"=>"Claims;Customer Service;Medical", "Value"=>"800-888-8288"}

你由此可以看出，关键value已经相差values在每个哈希表，我想只打印一个特定的值，也就是PO BOX 60007 LOS ANGELES, CA 90060

我尝试通过hash["value"]打印hash["value"] ，并打印所有值。 我尝试使用to_s函数将它们加载到array[]以打印所需的值，但是所有这些值均已加载到一个数组中，否则我可能将数组加载错了。

array = []
array = medical.split("\n")
text = array.to_s
text1 = array.index{|s| s.include?("P.O.")}
puts text1

有人可以帮助我如何打印特定的哈希值，尽管键名为value的键中存在各种value

Answer 1

如果这正是hash的模式，那么我可以确定的唯一性是，除了要查找的哈希以外，所有哈希都具有多个键..将其视为哈希数组

hashes.each{ |hash| break hash['Value'] if hash.keys == ['Value'] }

更新

从注释中，您可以直接检查并打印所需的值，而不必单独打印散列。

results1.map{ |result1| (value = result1['Value']).include?('P.O. BOX') ? value : nil }.compact

它将返回具有子字符串PO BOX的字符串数组

Answer 2

假设您有一个哈希表数组，并且想要搜索“ PO”字符串，则可以执行以下操作：

arr.select { |hash| hash["Value"][/P\.O\./] }.flat_map(&:values)
#=> ["P.O. BOX 60007 LOS ANGELES, CA 90060"]

Answer 3

array_hashes = [
    {"Specialty"=>"Other (note in description);Medical;Dental;Vision", "Value"=>"https://www.example.com/ca"},
    {"Value"=>"P.O. BOX 60007 LOS ANGELES, CA 90060"},
    {"Specialty"=>"Pharmacy;Medical", "Value"=>"800-824-0898"},
    {"Specialty"=>"Urgent Care;Medical", "Value"=>"800-700-9186"},
    {"Specialty"=>"Urgent Care;Emergency Care;Medical;Chiropractor;Acupuncture", "Value"=>"800-677-6669"},
    {"Specialty"=>"Pharmacy;Medical", "Value"=>"https://www.example.com"},
    {"Specialty"=>"Claims", "Value"=>"https://www.example.com/consumer/claims/claimsoverview"},
    {"Specialty"=>"Urgent Care;Emergency Care;Medical;Chiropractor;Acupuncture", "Value"=>"https://example/example/apps/services/www/ABCBS/mobilewebapp/default/index.html#/providers/search"},
    {"Specialty"=>"Claims;Customer Service;Medical", "Value" => "800-888-8288"}] 

> array_hashes.select{|h| h["Value"].include?("P.O.")}.flat_map(&:values).first
#=> "P.O. BOX 60007 LOS ANGELES, CA 90060"