我有这个数组:
[{ "id": 1, "myId": "100", "name": "amey" }, { "id": 2, "myId": "100", "name": "anuj" }, { "id": 3, "myId": "101", "name": "suraj" }, { "id": 4, "myId": "101", "name": "suraj h" }]
我想要这样的输出:
[{ "id": 1, "myId": "100", "name": ["amey", "anuj"] }, { "id": 3, "myId": "101", "name": ["suraj", "suraj h] }]
我该如何使用javascript
for (var i = 0; i < myarray.length; i++) {
//And loop again for duplicate data
for (var j = i + 1; j < myarray.length; j++) {
if (
myarray[i].VENDOR_ID == myarray[j].VENDOR_ID &&
myarray[i].ORDER_ID === myarray[j].ORDER_ID
) {
var tmp = myarray[j].NAME;
console.log(tmp);
myarray[j].NAME = [];
myarray[j].NAME.push(tmp);
myarray[j].NAME.push(myarray[i].NAME);
myarray[i] = {};
}
}
}
您可以使用将数组归约到对象中并返回值数组。使用该myId
属性作为分组依据,可以简化为一个对象。浅复制任何现有状态和andname
数组,并name
从当前元素中追加新值。
Object.values(
input.reduce(
(acc, { id, myId, name }) => ({
...acc,
[myId]: {
...(acc[myId] || { id, myId }),
name: [...(acc[myId]?.name || []), name]
}
}),
{}
)
const input = [
{ id: 1, myId: "100", name: "amey" },
{ id: 2, myId: "100", name: "anuj" },
{ id: 3, myId: "101", name: "suraj" },
{ id: 4, myId: "101", name: "suraj h" }
];
const res = Object.values(
input.reduce(
(acc, { id, myId, name }) => ({
...acc,
[myId]: {
...(acc[myId] || { id, myId }),
name: [...(acc[myId]?.name || []), name]
}
}),
{}
)
);
console.log(JSON.stringify(res));
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我来说两句