如何在JavaScript中将Object {}转换为键值对的Array []

Question

我想转换这样的对象：{"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0}成为一组键值对，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？

Answer 1

您可以使用Object.keys()和map()执行此操作

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(function(key) {

  return [Number(key), obj[key]];

});

console.log(result);

Answer 2

最好的方法是：

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} 

Object.entries(obj);

entries如此处所示，呼叫将[key, value]按照提问者的要求返回对。

或者，你可以调用Object.values(obj)，它只返回值。