javascript根据相同id合并形成child子数组（支持低版本浏览器）

var data = [
    {
        "date": "2022-08-30 11:30:00",
        "id": "2105240010",
        "pId": 222550
    },
    {
        "date": "2022-08-30 11:30:00",
        "id": "2105240010",
        "pid": 222550
    },
    {
        "date": "2022-08-30 08:00:00",
        "id": "2105240012",
        "pid": 222309
    }
]

方法：

var dataInfo = {};
data.forEach((item, index) => {
	var { id } = item;
	if (!dataInfo[id]) {
		dataInfo[id] = {
			id,			
			child: []
		}
	}
	dataInfo[id].child.push(item);
});
var list = Object.values(dataInfo); // list 转换成功的数据
console.log('输出结果', list)

输出结果：

(2) [{…}, {…}]
0: {id: '2105240010', child: Array(2)}
1: {id: '2105240012', child: Array(1)}
length: 2
[[Prototype]]: Array(0)