对数组距离或商品大小排序

function distance(distance) {
  return function(a, b) {
    var value1 = a[distance];
    var value2 = b[distance];
    return value1 - value2;
  }
}

function big(value) {
  return function(a, b) {
    var v1 = a[value];
    var v2 = b[value];
    return v2 - v1;
  }
}

用法

 let array = [
   {num:1,name:'1'},
    {num:2,name:'2'}
  ]
array.sort(big('num'))