Json grupa danych JavaScript

Question

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

Mam dane JSON skonstruowany tak jak ...

{"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 grupy lub restrukturyzacji go tak jak ...

{"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 by to osiągnąć to z Javascript/jQuery? Niestety nie mogę edytować tego, co serwer mi wysyła.

Answer 1

Wystarczy śledzić 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}));