哈希火箭

Question

前更换结肠癌双引号我有如下哈希：

{"_id"=>BSON::ObjectId('567ccbd747824a621d8b4567'), "response"=>{"version"=>"1.1", "statusCode"=>302, "headers"=>{"content-type"=>[""], "content-length"=>[""], "host"=>["54.223.52.194:9011"], "connection"=>["keep-alive"], "cache-control"=>["max-age=0"], "accept"=>["text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"], "upgrade-insecure-requests"=>["1"], "user-agent"=>["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36"], "accept-encoding"=>["gzip, deflate, sdch"], .......} 

我想更换与结肠癌的双引号。预期的输出是：

{:_id=>BSON::ObjectId('567ccbd747824a621d8b4567'), :response=>{:version=>"1.1",.....} 

我怎么能这样做？

Answer 1

建立一个新的Hash，具有象征性的钥匙：

def symbolize_keys(o) 
    case o 
    when Hash 
    Hash[o.map { |k, v| [k.to_sym, symbolize_keys(v)] }] 
    when Array 
    o.map { |e| symbolize_keys(e) } 
    else 
    o 
    end 
end 

（假设你的意思是 “冒号”，而不是 “逗号”）

Answer 2

所有的按键就映射到Symbol S：

hsh.map {|k, v| [k.to_sym, v] }.to_h