如果hashMap具有相同的键名，如何获取对象数组中的所有值

Question

我具有JSON结构和如下代码：

const villages = 
    {
    "lossesOccured":
        [
            {
                "type": "destroyed",
                "affectedOn": "humans",
                "quantity": 120,
                "reliefFund": 100000,
                "location": {
                    "district": "thanjavur",
                    "villageName": "madukkur",
                    "pincode": "614903"
                }
            },
            {
                "type": "physicalDamage",
                "affectedOn": "humans",
                "quantity": 250,
                "reliefFund": 50000,
                "location": {
                    "district": "thanjavur",
                    "villageName": "madukkur",
                    "pincode": "614903"
                }
            }
         ]
    }

const losses = villages.lossesOccured

const myMap = new Map()
const humanMap = new Map()

losses.forEach((data,index) => {
    var keys = data.affectedOn
    var objJSON = new Object();
    for (i = 0; i < keys.length; i++) {
        objJSON[keys] = data;
       }
       myMap.set(objJSON,data)
});

function extactLosses(){
    myMap.forEach(loss => {
        if(loss.affectedOn === "humans"){
            humanMap.set(loss.affectedOn,[loss])
     }

for (var [key, value] of humanMap) {
    console.log(key , value);
 }

根据上述代码，由于许多元素中都有相同的键名（affectedOn），因此map消除了所有重复项，并且在输出中仅输出一个。 有没有一种方法可以将键以字符串和值的形式显示为对象数组，而不必消除具有相同键名的键。 预先感谢。

输出：

预期输出

Answer 1

似乎您只想过滤LossOccurred数组以提取那些是人为损失的数组。

const villages = 
    {
    "lossesOccured":
        [
            {
                "type": "destroyed",
                "affectedOn": "humans",
                "quantity": 120,
                "reliefFund": 100000,
                "location": {
                    "district": "thanjavur",
                    "villageName": "madukkur",
                    "pincode": "614903"
                }
            },
            {
                "type": "physicalDamage",
                "affectedOn": "humans",
                "quantity": 250,
                "reliefFund": 50000,
                "location": {
                    "district": "thanjavur",
                    "villageName": "madukkur",
                    "pincode": "614903"
                }
            },
            {
                "type": "physicalDamage",
                "affectedOn": "NOT humans",
                "quantity": 250,
                "reliefFund": 50000,
                "location": {
                    "district": "thanjavur",
                    "villageName": "madukkur",
                    "pincode": "614903"
                }
            }
         ]
    };
    
const humanLosses = villages.lossesOccured.filter(loss => loss.affectedOn == 'humans');

console.log(humanLosses);