如何按值对（关联）数组进行排序？

问题描述：

可能重复：

如何按Javascript中的值对关联数组进行排序？

首先，我知道技术上Javascript没有关联数组，但我不确定如何标题并获得正确的想法。

So first off I know technically Javascript doesn't have associative arrays, but I wasn't sure how to title it and get the right idea across.

所以这是我的代码，

var status = new Array();
status['BOB'] = 10
status['TOM'] = 3
status['ROB'] = 22
status['JON'] = 7

我想按值排序，以便稍后在上循环播放首先是ROB ，然后是 BOB 等。

And I want to sort it by value such that when I loop through it later on ROB comes first, then BOB, etc.

我试过了，

status.sort()
status.sort(function(a, b){return a[1] - b[1];});

但他们似乎都没有做任何事情。

But none of them seem to actually DO anything.

将阵列打印到控制台之前和之后会导致它以相同的顺序出现。

Printing the array out to the console before and after result in it coming out in the same order.

答

数组只能有数字索引。您需要将其重写为Object或Object of Array。

Arrays can only have numeric indexes. You'd need to rewrite this as either an Object, or an Array of Objects.

var status = new Object();
status['BOB'] = 10
status['TOM'] = 3
status['ROB'] = 22
status['JON'] = 7

或

var status = new Array();
status.push({name: 'BOB', val: 10});
status.push({name: 'TOM', val: 3});
status.push({name: 'ROB', val: 22});
status.push({name: 'JON', val: 7});

如果您喜欢 status.push 方法，您可以使用以下方式对其进行排序：

If you like the status.push method, you can sort it with:

status.sort(function(a,b) {
    return a.val - b.val;
});

如何按值对（关联）数组进行排序？

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