如何根据键中的字符串获取 json 字符串的键和值

Question

我有一个 JSON 文件，如下所示：

{
"rooms":{
  "operatorLimbo":[
     
  ],
  "pager":[
     "w0vu9ourxkdpkf0vwosrim",
     "mekkgn9e9kdpwf2rzpkf41",
     "upkicevngkd5s2h8o01wyz",
     "x29ywtag4kfs0mylq2rd4v"
  ],
  "ru_pagers":[
     "mekkgn9e9kdpwf2rzpkf41"
  ],
  "ch_pagers":[
     "upkicevngkd5s2h8o01wyz"
  ],
  "operators":[
     "r9agylhvekcoibhrk8db8c",
     "p94jb2ocyk5hv0ch8tivk5",
     "v7cxhqxa3kdgik1h4t1sx0",
     "spuvkm9nnketwnqeelqzbf"
  ],
  "pl_operators":[
     "spuvkm9nnketwnqeelqzbf"
  ],
  "clients":[
     "g99g943hlkh0kp1864rwpz",
     "prky4witjkh0naaswiewzs"
  ],
  "pl_users":[
     
  ],
  "ru_operators":[
     "r9agylhvekcoibhrk8db8c"
  ],
  "ch_operators":[
     "v7cxhqxa3kdgik1h4t1sx0"
  ],
  "nl_operators":[
     "p94jb2ocyk5hv0ch8tivk5"
  ],
  "nl_pagers":[
     "w0vu9ourxkdpkf0vwosrim"
  ],
  "ch_users":[
     "prky4witjkh0naaswiewzs"
  ],
  "nl_users":[
     "g99g943hlkh0kp1864rwpz"
  ],
  "pl_pagers":[
     "x29ywtag4kfs0mylq2rd4v"
  ],
  "ru_users":[
     
  ],
  "us_operators":[
     
  ],
  "au_operators":[
     
  ],
  "au_users":[
     
  ],
  "au_pagers":[
     
  ],
  "za_operators":[
     
  ],
  "yoiqfvvvokh0kp2v53sic9":{
     "roomid":"yoiqfvvvokh0kp2v53sic9",
     "type":"1to1",
     "ujid":"g99g943hlkh0kp1864rwpz",
     "aid":"3173aaacd43941c7bef1a99e0057ba2b",
     "operator":{
        "fullname":"Operator",
        "name":"Operator",
        "lastname":"Jura"
     },
     "members":[
        "Ss0G3RCClvOO8I03AAIp",
        "jZGZ_yAb-SC3bEpmAAJz"
     ],
     "chatRecord":11151,
     "ojid":"p94jb2ocyk5hv0ch8tivk5",
     "usid":"jZGZ_yAb-SC3bEpmAAJz"
  },
  "deomjtr27kh0l52ogg9zxh":{
     "roomid":"deomjtr27kh0l52ogg9zxh",
     "type":"1to1",
     "ujid":"prky4witjkh0naaswiewzs",
     "aid":"3173aaacd43941c7bef1a99e0057ba2b",
     "operator":{
        "fullname":"Operator",
        "name":"Operator",
        "lastname":"Jura"
     },
     "members":[
        "DPeOVb1P6qCVXO6GAAJi",
        "AAkb84mpMxLzFHklAAJ7"
     ],
     "chatRecord":11153,
     "ojid":"v7cxhqxa3kdgik1h4t1sx0",
     "usid":"AAkb84mpMxLzFHklAAJ7"
  }
  }
}

我感兴趣的是获取 ch_operators 和 pl_operators 等值，基本上所有包含 _operators 的条目及其值，

使用下面的代码我只能得到键，我怎样才能得到值，

Object.keys(this.rooms).filter((key) => key.includes("_operators"))

如有任何帮助，我们将不胜感激。

Answer 1

您可以使用 Object.entries, .filter and Object.fromEntries 的组合来创建具有选定属性的新对象：

Object.fromEntries(
  Object.entries(this.rooms).filter(([key]) => key.includes("_operators"))
)

Object.entries returns 包含键和值的数组（作为“元组”），Object.fromEntries 从这样的数组构建一个新对象。

如何根据键中的字符串获取 json 字符串的键和值

How to get the key and values of a json string based on a string in the key

json

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ecmascript-6