Grupowanie danych Javascript json [zamknięte]

Question

Grupowanie danych Javascript json [zamknięte]

Przepraszam, jeśli już o to pytano, ale nie mogłem znaleźć dobrego przykładu tego, co próbuję osiągnąć. Może po prostu nie szukam właściwej rzeczy. Proszę mnie poprawić, jeśli jest jakieś wyjaśnienie. W każdym razie...

Mam tak skonstruowane dane JSON...

{"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"},
]}

Chciałbym zgrupować, lub zrestrukturyzować go w ten sposób...

{"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"}
    ]}
]}

Jak to osiągnąć z Javascript/jQuery? Niestety nie mogę edytować tego co wysyła mi serwer.

18

javascript jquery distinct grouping

Author: ekad, 2012-06-28

Source

1 answers

score 26 · Accepted Answer

Po prostu śledź to wszystko w obiekcie:

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}));