如何遍歷哈希數組以獲取嵌套數組的值？

Question

我想遍歷並一次打印出關鍵“愛好”的值

people = [
  {
    "first_name" => "Robert",
    "last_name" => "Garcia", 
    "hobbies" => ["basketball", "chess", "phone tag"]
   },
   {
    "first_name" => "Molly",
    "last_name" => "Barker",
    "hobbies" => ["programming", "reading", "jogging"]
   },
   {
    "first_name" => "Kelly",
    "last_name" => "Miller",
    "hobbies" => ["cricket", "baking", "stamp collecting"]
   }
]

這是我在被難倒之前想到的

people.each { |inner|
    inner.each { |key, value|
      p value
    }
}

Answer 1

你可以這樣做：

people.each do |person|
  puts "- #{person['first_name']} #{person['last_name']}"
  person['hobbies'].each { |hobby| puts hobby }
end

這將生成這個 output：

- Robert Garcia
basketball
chess
phone tag
- Molly Barker
programming
reading
jogging
- Kelly Miller
cricket
baking
stamp collecting