我想像这样转换一个对象：
{"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0}
成一个键值对数组，如下所示：
[[1,5],[2,7],[3,0],[4,0]...].
如何在 JavaScript 中将对象转换为键值对数组？
您可以使用Object.keys() and map()去做这个
var obj = {"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0}
var result = Object.keys(obj).map((key) => [key, obj[key]]);
console.log(result);
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