Javascript 如何使用typescript从对象数组中获取部分对象

我有一个对象数组，我只想过滤和ftech对象的一部分，我将把它作为主体参数发送给API。 下面是我的代码，但是它返回了一个数组，里面有我的对象。我不希望它是数组，而只是一个对象。 我怎样才能做到这一点

原始对象数组：

[ {
"flowId" : 11,
"flowName" : "jobtest003",
"version" : 1,
"ingestionFlowId" : "",
"jobCreatedDate" : "25-05-2020",
"jobUpdateDate" : "28-06-2020",
"jobLastRunDate" : "29-06-2020",
"active" : false,
"properties" : [ {
"id" : 12,
"key" : "sourceTable",
"value" : "job002",
"category" : "General Settings"
}, {
"id" : 13,
"key" : "Source",
"value" : "api",
"category" : "Source Properties"
},  {
"id" : 147,
"key" : "Target Path",
"value" : "/raw/au/jackson",
"category" : "Destination Properties"
} ]
}, {
"flowId" : 21,
"flowName" : "jobtest004",
"version" : 1,
"ingestionFlowId" : null,
"jobCreatedDate" : "25-05-2020",
"jobUpdateDate" : "28-06-2020",
"jobLastRunDate" : "29-06-2020",
"active" : false,
"properties" : [ {
"id" : 21,
"key" : "sourceTable",
"value" : "job003",
"category" : "General Settings"
}, {
"id" : 22,
"key" : "Source",
"value" : "api",
"category" : "Source Properties"
}, {
"id" : 23,
"key" : "Client ID",
"value" : "ebf73456-443e-4986-941b-057906d25e2f",
"category" : "Destination Properties"
},  {
"id" : 147,
"key" : "Target Path",
"value" : "/raw/au/jackson",
"category" : "Destination Properties"
} ]
}, {
"flowId" : 22,
"flowName" : "jobtest004",
"version" : 1,
"ingestionFlowId" : null,
"jobCreatedDate" : "25-05-2020",
"jobUpdateDate" : "28-06-2020",
"jobLastRunDate" : "29-06-2020",
"active" : false,
"properties" : [ {
"id" : 21,
"key" : "sourceTable",
"value" : "job003",
"category" : "General Settings"
}, {
"id" : 22,
"key" : "Source",
"value" : "api",
"category" : "Source Properties"
}, {
"id" : 23,
"key" : "Client ID",
"value" : "ebf73456-443e-4986-941b-057906d25e2f",
"category" : "Destination Properties"
},  {
"id" : 147,
"key" : "Target Path",
"value" : "/raw/au/jackson",
"category" : "Destination Properties"
} ]
} ]

我想要的结果是：

{
  "flowId" : 20,
  "flowName" : "jobtest004",
  "version" : 1,
  "ingestionFlowId" : null,
  "jobCreatedDate" : "25-05-2020",
  "jobUpdateDate" : "28-06-2020",
  "jobLastRunDate" : "29-06-2020",
  "active" : false,
  "properties" : [ {
    "id" : 21,
    "key" : "sourceTable",
    "value" : "job003",
    "category" : "General Settings"
  }, {
    "id" : 22,
    "key" : "Source",
    "value" : "api",
    "category" : "Source Properties"
  }, {
    "id" : 23,
    "key" : "Client ID",
    "value" : "ebf73456-443e-4986-941b-057906d25e2f",
    "category" : "Destination Properties"
  },  {
    "id" : 147,
    "key" : "Target Path",
    "value" : "/raw/au/jackson",
    "category" : "Destination Properties"
  } ]
}

我得到的结果是：

[{
  "flowId" : 20,
  "flowName" : "jobtest004",
  "version" : 1,
  "ingestionFlowId" : null,
  "jobCreatedDate" : "25-05-2020",
  "jobUpdateDate" : "28-06-2020",
  "jobLastRunDate" : "29-06-2020",
  "active" : false,
  "properties" : [ {
    "id" : 21,
    "key" : "sourceTable",
    "value" : "job003",
    "category" : "General Settings"
  }, {
    "id" : 22,
    "key" : "Source",
    "value" : "api",
    "category" : "Source Properties"
  }, {
    "id" : 23,
    "key" : "Client ID",
    "value" : "ebf73456-443e-4986-941b-057906d25e2f",
    "category" : "Destination Properties"
  },  {
    "id" : 147,
    "key" : "Target Path",
    "value" : "/raw/au/jackson",
    "category" : "Destination Properties"
  } ]
}]

我不希望我的结果是一个数组，我只希望它是一个对象。

为此，您可以在数组上使用find方法

---

使用数组的find方法，如下所示

var array = your data;

var object_needed = array.find(d=>d.flowId == 21)//use required id in place of 21 or use required property in place of .flowIf
//console.log(object_needed)

---

希望这有帮助

如果我没听错的话，请解释一下 Array.prototype.filter将始终仅返回数组，您必须使用数组索引从数组中获取对象

使用reduce方法将数组转换为对象

const convertArrayToObject=数组，键=>{ 常量initialValue={}； return array.reduceobj，item=>{ 返回{ …obj， [项目[关键]]：项目， }; }，初始值； }; 让testData=[{flowId:11，flowName:jobtest003，版本：1，ingestionFlowId:，jobCreatedDate:25-05-2020，jobUpdateDate:28-06-2020，jobLastRunDate:29-06-2020，active:false，属性：[{id:12，键：sourceTable，值：job002，类别：常规设置}，{id:13，键：源，值：api，类别：源属性}，{id:147，key:Target Path，value:/raw/au/jackson，category:Destination Properties}]}，{flowId:21，flowName:jobtest004，版本：1，ingestionFlowId:null，JobCreateDate:25-05-2020，jobUpdateDate:28-06-2020，jobLastRunDate:29-06-2020，活动：false，属性：[{id:21，key:sourceTable，value:job003，category:General Settings}，{id:22，key:Source，value:api，category:sourceproperties}，{id:23，key:Client-id，value:ebf73456-443e-4986-941b-057906d25e2f，category:Destination-Properties}，{id:147，key:Target Path，value:/raw/au/jackson，category:Destination-Properties}]}，{flowId:22，flowName:jobtest004，版本：1，ingestionFlowId:null，jobCreatedDate:25-05-2020，jobUpdateDate:28-06-2020，jobLastRunDate:29-06-2020，active:false，属性：[{id:21，键：sourceTable，值：job003，类别：常规设置}，{id:22，键：源，值：api，类别：源属性}，{id:23，key:Client-id，value:ebf73456-443e-4986-941b-057906d25e2f，category:Destination-Properties}，{id:147，key:Target-Path，value:/raw/au/jackson，category:Destination-Properties}]； console.log ConvertArrayTobjectTestData，“flowId”

---

；您可以使用下面的find方法，该方法将只返回object

arrayOfData.find(function(obj){
return obj.Id == 11
})

或

---

谢谢。我通过循环和过滤数组使我的任务复杂化了。Find很简单，工作也很完美。

arrayOfData.find(obj => obj.Id == 11)