javascript - 如何将这种类型的数组转换为json对象呢？

Question

我有这个数组:

[ [ '560134275538747403', 39953 ],
  [ '411510958020624384', 36164 ],
  [ '468512396948930576', 31762 ],
  [ '482286641982078977', 29434 ],
  [ '249892869127536641', 6295 ] ]

我想将它转换成这样的对象:

{
"560134275538747403":39953,
"411510958020624384":36164,
"468512396948930576":31762,
"482286641982078977":29434,
"249892869127536641":6295
}

无论如何都要这样做吗？ 〜谢谢

Answer 1

使用Object.fromEntries:

const arr=[['560134275538747403',39953],['411510958020624384',36164],['468512396948930576',31762],['482286641982078977',29434],['249892869127536641',6295]];

const res = Object.fromEntries(arr);

console.log(res);

或者，由于这没有得到广泛支持，减少:

const arr=[['560134275538747403',39953],['411510958020624384',36164],['468512396948930576',31762],['482286641982078977',29434],['249892869127536641',6295]];

const res = arr.reduce((a, [k, v]) => (a[k] = v, a), {});

console.log(res);