排序多维数组javascript [英] sort multidimensional array javascript

问题描述

我想对一个双精度的多维数组进行排序.

I would like to sort a multidimensional array of doubles.

数组看起来像这样:[[1,2]，[2,3]，[5,6]，[8,9]]

The array looks like this : [[1,2],[2,3],[5,6],[8,9]]

我想按X值对它进行排序，并保持x，y值成对.

I would like to sort it by the X value, and keep the x,y values paired.

我在网站上搜索了多维排序，并找到了这些这样的线程，其中排序功能是修改如下:

I searched the site for multidimentional sorting and found threads like these where the sort function is modified like so:

location.sort(function(a,b) {

  // assuming distance is always a valid integer
  return parseInt(a.distance,10) - parseInt(b.distance,10);

});

但是，我不确定如何修改此功能以使其对我有用.

I'm not sure how to modify this function to work for me, however.

推荐答案

只需比较数组值-

var myarray =  [[1,2],[2,3],[5,6],[8,9]];

myarray.sort(function(a,b) { return a[0] - b[0]; });

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