將多個對象推入單個對象

Question

我正在考慮將多個Json對象推入1個單個對象。

目前，我正在從AJAX解析一個數組，它像這樣控制台日志

0:{id: "24", user: "Joe", pass: "pass", name: "Joe Bloggs", role: "Technical Support", …}
1:{id: "25", user: "Jim", pass: "pass", name: "Jim Bloggs", role: "Technical Support", …}
2:{id: "26", user: "John", pass: "pass", name: "John Bloggs", role: "Technical Support", …}

我需要運行一個循環，並以這種確切的格式將所有ID和用戶推入一行

0: {Joe : 24, Jim : 25, John : 26}

我怎樣才能做到這一點？

謝謝

Answer 1

您可以將數據簡化為一個新對象：

 let a = [{id: "24", user: "Joe", pass: "pass", name: "Joe Bloggs", role: "Technical Support"}, {id: "25", user: "Jim", pass: "pass", name: "Jim Bloggs", role: "Technical Support"}, {id: "26", user: "John", pass: "pass", name: "John Bloggs", role: "Technical Support"}] let res = a.reduce((a,b) => { a[b.user] = b.id; return a; }, {}); console.log(res); 

或者，如果您更喜歡銷毀

 let a = [{id: "24", user: "Joe", pass: "pass", name: "Joe Bloggs", role: "Technical Support"}, {id: "25", user: "Jim", pass: "pass", name: "Jim Bloggs", role: "Technical Support"}, {id: "26", user: "John", pass: "pass", name: "John Bloggs", role: "Technical Support"}] let res = {}; for (let {id, user} of a) { res[user] = id; } console.log(res);