从多维数组中删除特定的数组元素? [英] Deleting specific array element from multidimensional array?

问题描述

我在遍历多维数组并删除特定的元素数组时遇到麻烦.我的多维数组看起来像这样:

I'm having trouble cycling through a multidimensional array and deleting a specific element array. My multidimensional array looks a little like this:

myArray = [["Tom", "161"], ["Dick", "29"], ["Harry", "46"]];

因此，如果我的数字为29.循环遍历此数组并删除第二个元素为29的array元素的最有效方法是什么?即[[Dick]，"29"]

So if I have the number 29. What's the most efficient way to cycle through this array and delete the array element who's second element is 29? i.e. ["Dick", "29"]

推荐答案

var myArray = [["Tom", "161"], ["Dick", "29"], ["Harry", "46"]];
var myNewArray = myArray.filter(function(item){ return item[1] != 29 })  

.filter使用本机代码循环遍历您的数组.当然，构建新的阵列可能比仅将一部分旧阵列进行测试要昂贵得多.

.filter uses native code to loop over your array. Building a new array could of course be more expensive than just cutting a part out of the old one, to be tested.

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