在javascript中查找并替换嵌套数组对象

问题描述 投票:0回答:1

如何在javascript中查找和替换深层嵌套数组对象

我有一个示例对象名称obj并通过id, in , and out(obj_res)过滤了该对象。如何在javascript中使用id fund中的obj_res查找和更新特定的obj,如预期输出中所示

我被困了需要帮助如何在javascript中做

var obj_res = getValue("bank", "bank", "trans");
function getValue(send, receive, id){
   const temp = obj.map(e => Object.entries(e).map(([k, val]) => val)).flat(3)
    result_obj = temp.filter(x=>x.in ==send && && x=>x.out ==receive && x.id == id);
  return result_obj;}
//whole object input
var obj = [{
    "btob": [{
      "id": "trans",
      "in": "bank",
      "out": "bank",
      "value": 10,
    },{
      "id": "fund",
      "in": "bank",
      "out": "bank",
      "value": 10
    }],
    "ctob": [{
      "id": "trans",
      "in": "credit",
      "out": "bank",
      "value": 20
    },{
      "id": "fund",
      "in": "credit",
      "out": "bank",
      "value": 10
    }]
}]
//resultant obj after filter by id , in ,out 
var obj_res =[{
  "id": "trans",
  "in": "bank",
  "out": "bank",
  "value": 10
 },{
 "id": "fund",
 "in": "bank",
 "out": "bank",
 "value": 10
}]

 Expected Output:
  res=[{
  "id": "trans",
  "in": "bank",
  "out": "bank",
  "value": 10
 },{
"id": "fund",
"in": "credit",
"out": "bank",
"value": 10
}]

javascript jquery arrays object
1个回答
0
投票

如果您认为只有一个,请使用find()获取第一个实例。否则使用filter()并循环遍历每个以修改每个匹配对象的属性

var obj_res = [{
  "id": "trans",
  "in": "bank",
  "out": "bank",
  "value": 10
}, {
  "id": "fund",
  "in": "bank",
  "out": "bank",
  "value": 10
}]


var fund = obj_res.find(({id}) => id === 'fund'); // returns array element or false

if (fund) {
  fund.in = 'XXXXX';
  console.log(obj_res)
}
© www.soinside.com 2019 - 2024. All rights reserved.