Javascript json 数据分组

Javascript json data grouping

本文关键字：数据 json Javascript      更新时间：2023-09-26

很抱歉，如果之前有人问过这个问题，但我找不到我想要完成的好例子。也许我只是没有寻找正确的东西。如果某处对此有解释，请纠正我。无论如何。。。

我有这样的 JSON 数据结构...

{"Result":[
    {"Level":"ML","TeamName":"Team 1","League":"League 1"},
    {"Level":"ML","TeamName":"Team 2","League":"League 2"},
    {"Level":"ML","TeamName":"Team 3","League":"League 3"},
    {"Level":"3A","TeamName":"Team 4","League":"League 1"},
    {"Level":"3A","TeamName":"Team 5","League":"League 2"},
    {"Level":"3A","TeamName":"Team 6","League":"League 3"},
    {"Level":"2A","TeamName":"Team 7","League":"League 1"},
    {"Level":"2A","TeamName":"Team 8","League":"League 2"},
    {"Level":"2A","TeamName":"Team 9","League":"League 3"},
]}

我想像这样分组或重组它...

{"Result":[
    {"ML":[
        {"TeamName":"Team 1","League":"League 1"},
        {"TeamName":"Team 2","League":"League 2"},
        {"TeamName":"Team 3","League":"League 3"}
    ]},
    {"3A":[
        {"TeamName":"Team 4","League":"League 1"},
        {"TeamName":"Team 5","League":"League 2"},
        {"TeamName":"Team 6","League":"League 3"}
    ]},
    {"2A":[
        {"TeamName":"Team 7","League":"League 1"},
        {"TeamName":"Team 8","League":"League 2"},
        {"TeamName":"Team 9","League":"League 3"}
    ]}
]}

我将如何使用Javascript/jQuery实现这一点？不幸的是，我无法编辑服务器发送给我的内容。

只需在一个对象中跟踪它：

let groups = Object.create(null);
data.forEach(item => {
    if (!groups[item.Level]) {
        groups[item.Level] = [];
    }
    groups[item.Level].push({
        TeamName: item.TeamName,
        League: item.League
    });
});
let result =
    Object.entries(groups)
        .map(([k, v]) => ({[k]: v}));
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