javascript数组对象算值

我想做个函数，通过1和2两个参数就能得到3的值


{
    "flag": "00",
    "msg": "成功",
    "list": {
        "511": [
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146204",
                "sensorname": "F_2_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "",
                "calc": "☆",
                "value": "43699.98",
                "valuetime": "2023-10-25 22:00:09",
                "devicegroup": "1",
                "describe": "二次热表累计热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146205",
                "sensorname": "F_2_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "",
                "calc": "☆",
                "value": "2.01",
                "valuetime": "2023-10-25 22:00:09",
                "devicegroup": "1",
                "describe": "二次热表瞬时热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146140",
                "sensorname": "F_11_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ/h",
                "calc": "☆",
                "value": "3.83",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146139",
                "sensorname": "F_11_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ",
                "calc": "☆",
                "value": "64805.70",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146146",
                "sensorname": "F_3_Acc",
                "sensorstyle": "1",
                "point": "2",
                "until": "m3",
                "calc": "☆",
                "value": "2666.61",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146147",
                "sensorname": "KWh",
                "sensorstyle": "1",
                "point": "2",
                "until": "kwh",
                "calc": "☆",
                "value": "152946.55",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146136",
                "sensorname": "DP1",
                "sensorstyle": "1",
                "point": "3",
                "until": "Mpa",
                "calc": "☆",
                "value": "0.301",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            }
        ],
        "523": [
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144240",
                "sensorname": "F_2_GJ",
                "sensorstyle": "1",
                "point": "",
                "until": "",
                "calc": "☆",
                "value": "0",
                "valuetime": "2023-10-25 22:00:02",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144241",
                "sensorname": "F_2_KW",
                "sensorstyle": "1",
                "point": "",
                "until": "",
                "calc": "☆",
                "value": "0",
                "valuetime": "2023-10-25 22:00:02",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144176",
                "sensorname": "F_11_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ/h",
                "calc": "☆",
                "value": "6.14",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "瞬时热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144175",
                "sensorname": "F_11_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ",
                "calc": "☆",
                "value": "110356.06",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "累计热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144182",
                "sensorname": "F_3_Acc",
                "sensorstyle": "1",
                "point": "2",
                "until": "m3",
                "calc": "☆",
                "value": "2661.95",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "补水累计流量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144183",
                "sensorname": "KWh",
                "sensorstyle": "1",
                "point": "2",
                "until": "kwh",
                "calc": "☆",
                "value": "382349.70",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "电表电量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144172",
                "sensorname": "DP1",
                "sensorstyle": "1",
                "point": "3",
                "until": "Mpa",
                "calc": "☆",
                "value": "0.289",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "一次供回水压差",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            }
        ]
    }
}

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4条回答默认最新

社区专家-Monster-XH 2023-10-25 22:16

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添加：

/**
 * 根据设备编号和传感器名称获取对应的 value
 * @param {string} deviceKey - 设备编号
 * @param {string} sensorName - 传感器名称
 * @returns {string|null} 对应的 value，如果找不到则返回 null
 */
function getValueByDeviceAndSensor(deviceKey, sensorName) {
    const deviceList = data.list[deviceKey];
    if (!deviceList) return null;

    for (let device of deviceList) {
        if (device.sensorname === sensorName) {
            return device.value;
        }
    }

    return null;
}

// 使用示例
const deviceKey = "511";
const sensorName = "F_2_GJ";
const value = getValueByDeviceAndSensor(deviceKey, sensorName);
console.log(value);

完整代码：


{
    "flag": "00",
    "msg": "成功",
    "list": {
        "511": [
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146204",
                "sensorname": "F_2_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "",
                "calc": "☆",
                "value": "43699.98",
                "valuetime": "2023-10-25 22:00:09",
                "devicegroup": "1",
                "describe": "二次热表累计热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146205",
                "sensorname": "F_2_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "",
                "calc": "☆",
                "value": "2.01",
                "valuetime": "2023-10-25 22:00:09",
                "devicegroup": "1",
                "describe": "二次热表瞬时热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146140",
                "sensorname": "F_11_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ/h",
                "calc": "☆",
                "value": "3.83",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146139",
                "sensorname": "F_11_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ",
                "calc": "☆",
                "value": "64805.70",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146146",
                "sensorname": "F_3_Acc",
                "sensorstyle": "1",
                "point": "2",
                "until": "m3",
                "calc": "☆",
                "value": "2666.61",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146147",
                "sensorname": "KWh",
                "sensorstyle": "1",
                "point": "2",
                "until": "kwh",
                "calc": "☆",
                "value": "152946.55",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477051",
                "devicename": "尚若小区",
                "id": "146136",
                "sensorname": "DP1",
                "sensorstyle": "1",
                "point": "3",
                "until": "Mpa",
                "calc": "☆",
                "value": "0.301",
                "valuetime": "2023-10-25 22:00:03",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "尚若小区///",
                "area": "尚若小区",
                "storagetime": "600",
                "systemname": "换热站系统",
                "online": "0"
            }
        ],
        "523": [
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144240",
                "sensorname": "F_2_GJ",
                "sensorstyle": "1",
                "point": "",
                "until": "",
                "calc": "☆",
                "value": "0",
                "valuetime": "2023-10-25 22:00:02",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144241",
                "sensorname": "F_2_KW",
                "sensorstyle": "1",
                "point": "",
                "until": "",
                "calc": "☆",
                "value": "0",
                "valuetime": "2023-10-25 22:00:02",
                "devicegroup": "1",
                "describe": "",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144176",
                "sensorname": "F_11_KW",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ/h",
                "calc": "☆",
                "value": "6.14",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "瞬时热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144175",
                "sensorname": "F_11_GJ",
                "sensorstyle": "1",
                "point": "2",
                "until": "GJ",
                "calc": "☆",
                "value": "110356.06",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "累计热量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144182",
                "sensorname": "F_3_Acc",
                "sensorstyle": "1",
                "point": "2",
                "until": "m3",
                "calc": "☆",
                "value": "2661.95",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "补水累计流量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144183",
                "sensorname": "KWh",
                "sensorstyle": "1",
                "point": "2",
                "until": "kwh",
                "calc": "☆",
                "value": "382349.70",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "电表电量",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            },
            {
                "devicenumber": "898604620419C1477058",
                "devicename": "毓营小区",
                "id": "144172",
                "sensorname": "DP1",
                "sensorstyle": "1",
                "point": "3",
                "until": "Mpa",
                "calc": "☆",
                "value": "0.289",
                "valuetime": "2023-10-25 22:00:01",
                "devicegroup": "1",
                "describe": "一次供回水压差",
                "xieyi": "MODBUS RTU",
                "controlstyle": "1",
                "address": "毓营小区///",
                "area": "毓营小区",
                "storagetime": "300",
                "systemname": "换热站系统",
                "online": "0"
            }
        ]
    }
}
/**
 * 根据设备编号和传感器名称获取对应的 value
 * @param {string} deviceKey - 设备编号
 * @param {string} sensorName - 传感器名称
 * @returns {string|null} 对应的 value，如果找不到则返回 null
 */
function getValueByDeviceAndSensor(deviceKey, sensorName) {
    const deviceList = data.list[deviceKey];
    if (!deviceList) return null;

    for (let device of deviceList) {
        if (device.sensorname === sensorName) {
            return device.value;
        }
    }

    return null;
}

// 使用示例
const deviceKey = "511";
const sensorName = "F_2_GJ";
const value = getValueByDeviceAndSensor(deviceKey, sensorName);
console.log(value);

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JS递归查找对象数组的某个值？ javascript
2017-04-20 04:24

回答 8 已采纳之前回答感觉都好乱，再来一次吧。楼主程序里面是有递归终止条件的，并不是没有。没看到的可以仔细看看。题主：你在exitindata函数中递归调用自身的时候，它有返回的值的，你用flag接住就可以了。
求教大神js如何修改数组对象中字符串的值 javascript
2020-05-08 09:30

回答 3 已采纳 - 方案一：不改变原始数组的值达到替换效果 ``` let util = { /** * 原始数组不被修改，将返回一个新数组，新数组只有指定切换的属性和原始数组不一致
js 中包含对象的数组中取最大值如何实现？ javascript
2018-01-22 13:28

回答 10 已采纳 function getmaxscore(arrayobj) var maxi=0; for (var i=0；i<arrayobj.length;i++) {
关于JavaScript数组你所不知道的3件事
2020-11-25 16:12

在编程语言当中，数组（Array）是一个非常常用的功能；它是一种特殊的变量，可以用来同时储存多个数值。然而，在JavaScript方面，数组的功能还有很多其他值得探索的地方。在这篇文章中，我们将会讨论JavaScript数组...
数组对象合并为一个对象内 es6 javascript vue.js
2022-04-26 13:29

回答 3 已采纳 var aList = [{'a':1},{'a2':2},{'a3':3}] arr = {} aList.forEach(res=>{ arr = Object.assign(ar
数组对象求重复值位置 javascript 算法
2023-03-17 22:15

回答 4 已采纳参考GPT和自己的思路：可以使用一个对象来记录每个重复的值出现的位置。具体实现步骤如下：定义一个空对象 repeatPositions = {} 用来记录重复值出现的位置。使用 for 循环遍历
js如何改变数组对象中某一个属性 javascript 有问必答
2021-08-25 15:37

回答 1 已采纳题主要的代码如下，有帮助麻烦点个采纳【本回答右上角】，谢谢~~ <script> // 怎么能只把a中b的值，按顺序替换成f中d的值，c值不变 var a = [ {b:1
JavaScript求取数组中最大值及索引
2022-12-28 16:45

Ther19的博客【代码】JavaScript求取数组中最大值及索引。
vue项目如何获取数组对象的某个值 javascript vue.js
2021-09-23 11:04

回答 3 已采纳问了好多人结果发现是一个很简单的问题我的意思是想循环了两个大盒子大盒子中都有一个小盒子我想通过这个数据中爱马仕这个字段来判断小盒子的隐藏显示结果是我写复杂了直接在小盒子里面v
React useState怎么修改数组中某个对象里的某个值 javascript react.js reactjs
2022-01-20 16:12

回答 1 已采纳 setMapData((data)=>{return {...data,center:{lng:longitude,lat:latitude}}})
Javascript将数组里面的值进行顺序赋值 javascript
2023-03-25 18:15

回答 1 已采纳参考GPT和自己的思路：好的，关于这个问题，我们可以使用 Javascript 中的 sort() 函数来实现对数组元素进行排序。具体方法如下：定义数组 arry var arry = [1,2,4
Javascript面向对象编程
2020-12-11 15:55

Javascript的重要性使用率１、在web应用中,涉及到前端界面编程基本上都要用到javascript语言； 2、Web2.0及Ajax推动了javascript语言。 3、随着大量的c/s应用转向b/s,富客户端技术的不断推广,javascript语言的应用...
判断一个数组中所有对象的某个属性值是否相同 javascript vue.js 前端有问必答
2021-08-23 18:56

回答 3 已采纳你题目的解答代码如下：（如有帮助，望采纳！谢谢! 点击我这个回答右上方的【采纳】按钮） let mobilePhoneList = [ { number: '123
JavaScript中根据一个数组对象过滤另一个数组对象
2022-04-20 00:02

我是段段的博客在写项目中遇到一个问题，就是根据一个对象数组去获取另一个对象数组中的值假设现在有以下两个对象数组 let arr1 = [ { id: 1, name: '张三', age: 20, hobby: ['吃饭', '睡觉', '打豆豆'] }, { id: 2, name: '...
Javascript函数式编程语言
2020-11-25 20:33

函数式编程语言 函数式编程语言是那些方便于使用函数式编程范式的语言。简单来说，如果具备函数式编程所需的特征，它就可以被称为函数式语言。在多数情况下，编程的风格实际上决定了一个程序是否是函数式的。是...
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javascript数组对象算值

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