如何转换哈希数组:
[{
id: 115,
ref_id: 440000000000337,
properties: [{name: "test"}],
type: "content"
},{
id: 116,
ref_id: 440000000000337,
properties: [{name: "asdf"}],
type: "content"
}]
获得所需的结果:
{
id: 440000000000337
type: "content"
properties: [{name: "test"}, {name: "asdf"}]
}
在一个区块更聪明,然后在[sic]示例中?用ruby函数获得这个[原文如此]的结果是否最好?
in = _
out = {properties: []}
in.map {|i| out[:id] = i[:ref_id]; out[:properties] << i[:properties]; out[:type] = i[:type]}
out[:properties].flatten!
答案 0 :(得分:1)
您不能使用变量名in
,因为它是关键字。我会改用iin
。
out = {
id: iin.last[:ref_id],
type: iin.last[:type],
properties: iin.flat_map{|e| e[:properties]}
}