Javascript json data grouping

Question

申し訳ありませんこれまでに質問されている場合は申し訳ありませんが、達成しようとしているものの良い例は見つかりませんでした。たぶん、私はちょうどいいものを探しているわけではない。どこかの説明があれば修正してください。とにかく...

私はグループ、または私が達成でしょうどのように...

{"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"} 
    ]} 
]} 

のような再構築をしたいと思いますので...

{"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"}, 
]} 

のような構造JSONデータを持っていますこれはJavascript/jQueryでですか？残念ながら私はサーバーが私に送るものを編集できません。

Answer 1

ただ、オブジェクトにそれをすべてのトラックを保持：

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}));