如何在ruby中获取JSON数组中的键值？

Question

我有以下 JSON -Structure：

{ "A" : "1", "B" : "2", "RandomOtherName" : "54738" }

如何在ruby中提取关键值（"A"，"B"，"RandomOtherName"，...）（最好是在数组中）？

Answer 1

require 'json'
data = '{ "A" : "1", "B" : "2", "RandomOtherName" : "54738" }'
JSON.parse(data).keys # => ["A", "B", "RandomOtherName"]