对多维数组中的列进行排序

I want to sort a multidimensional array using the first row, I want that the second and the third row get the same sort order of the first row

我想用第一行对多维数组排序，我想让第二行和第三行得到第一行相同的排序顺序

Here is an example of array :

下面是数组的一个例子:

var arr = 
[
[1,3,5,6,0,2],
[1,2,7,4,0,6],
[1,2,3,4,5,6]
]

the result that I want =

我想要的结果=。

[
[0,1,2,3,5,6],
[0,1,6,2,7,4],
[5,1,6,2,3,4]
]

I tried the following function but it doesnt work as I want

我尝试了下面的函数，但它不能按我想的那样工作

arr = arr.sort(function(a,b) {
  return a[0] > b[0];
});

What's wrong with my function ? Thank you

我的函数怎么了?谢谢你！

2 个解决方案

#1

I think I understand what you're looking for:

我想我明白你在找什么:

a = [
[1,3,5,6,0,2],
[1,2,7,4,0,6],
[1,2,3,4,5,6]
]

transpose = m => m[0].map((_, c) => m.map(r => r[c]));

z = transpose(transpose(a).sort((x, y) => x[0] - y[0]))

z.map(r => 
    document.write('<pre>'+JSON.stringify(r) + '</pre>'));

2 个解决方案

#1

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