如何按数值对json排序？

Question

如何将json按数值排序到数组中，然后如何轻松访问该信息。

{"362439239671087109":{"coins":19},"178538363954003968":{"coins":18},"234255082345070592":{"coins":137}} 

奇怪的数字是不和谐的用户ID。

Answer 1

嗯。首先，创建关联数组，如果json是从bakcend生成的（例如在php中），则可以将函数用于订单数组。 ---> http://php.net/manual/en/array.sorting.php 看到这个： Converting JavaScript object with numeric keys into array

Answer 2

var a = {"362439239671087109":{"coins":19},"178538363954003968":{"coins":18},"234255082345070592":{"coins":137}};
var b = Object.keys(a);
b.sort(function(x,y){return a[x].coins-a[y].coins});
console.log(b);

Answer 3

// Code that can handle VERY large numbers by treating them as strings.


var a = {
  "362439239671087109": {
    "coins": 19
  },
  "178538363954003968": {
    "coins": 18
  },
  "234255082345070592": {
    "coins": 137
  }
};


function padWithZeros(s) {
  return ("000000000000000000000" + s).substr(-20);
}

var b = Object.keys(a);
b.sort(
  function(x, y) {
    var s1 = padWithZeros(a[x].coins);
    var s2 = padWithZeros(a[y].coins);

    if (s1 === s2) {
      return 0;
    }

    if (s1 > s2) {
      return 1;
    } else {
      return -1;
    }


  });
console.log(b);