Question

可能重复：
Sort JavaScript array of Objects based on one of the object’s properties

我有一个具有z：

属性的对象

function building(z)
{
  this.z = z;
}

假设我创建了此对象的3个实例：

a = new building(5)
b = new building(2)
c = new building(8)

然后将这些实例放入数组

buildings = []
buildings.push(a)
buildings.push(b)
buildings.push(c)

问题

如何根据其包含的对象的 z 属性对此数组 IN ASCENDING ORDER 进行排序？排序后的最终结果应为：

before -> buildings = [a, b, c] 
sort - > buildings.sort(fu)
after -> buildings = [b, a, c]

Answer 1

您可以将比较函数传递给.sort()

function compare(a, b) {
  if (a.z < b.z)
     return -1;
  if (a.z > b.z)
     return 1;
  return 0;
}

然后使用：

myarray.sort(compare)

这里有一些docs