使用 lodash 按值对数组进行排序(整数) [英] Sort array with lodash by value (integer)

问题描述

我真的在这方面苦苦挣扎，但我找不到解决方案.

I'm really struggling on that but I cannot find a solution.

我有一个数组，我想按值(所有整数)对其进行排序.我想，好吧，让我们使用 lodash，肯定有一个方便的功能.

I have an array and I want to sort it by value (all integers). I thought, well let's use lodash, there sure must be a handy function for that.

虽然我不知道该怎么做.

Somehow I cannot figure out to do this though.

到目前为止，我得到了这个:

So far I got this:

myArray = [3, 4, 2, 9, 4, 2]

如果我使用此代码，我得到了结果:

I got a result if I used this code:

myArray = _(myArray).sort();

但不幸的是，返回值似乎不再是一个数组了.排序后 myArray.length 未定义.

But unfortunately the return value does not seem to be an array anymore. myArray.length is undefined after the sorting.

我发现了数千个 lodash 排序数组的示例，但总是通过键.https://lodash.com/docs#sortBy

I found thousands of examples of lodash sorting array but always via key. https://lodash.com/docs#sortBy

有人可以告诉我如何将以下返回结果作为数组获得吗?:

Can somebody tell my how I can get the following return result as an array?:

[2, 2, 3, 4, 4, 9]

这不会那么难，但不知怎的，我没有完成它......

It can't be that difficult, but somehow I don't get it done...

有时我也认为 lodash 文档有点复杂.我可能只是错过了一个重要的细节......

Also sometimes I think that lodash documentation is a little complex. I'm probably just missing out an important detail...

推荐答案

您可以在此处使用 sortBy() 函数.您不必指定密钥，因为它会回退到 identity().

You can use the sortBy() function here. You don't have to specify a key, as it will fall back to identity().

var myArray = [ 3, 4, 2, 9, 4, 2 ];

_.sortBy(myArray);
// → [ 2, 2, 3, 4, 4, 9 ]

_(myArray).sortBy().take(3).value();
// → [ 2, 2, 3 ]

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