JavaScript的比较数组 [英] JavaScript compare arrays

问题描述

我在以下格式的数组：

var markers = [
    ['Title', 15.102253, 38.0505243, 'Description', 1], 
    ['Another Title', 15.102253, 38.0505243, 'Another Description', 2],
    ['Title 3', 15.102253, 38.0505243, 'Description 3', 3], 
];

然后我有被传递到页面（M = 1,2），这被逗号分隔的查询字符串，然后分割创建类似如下的数组：

I then have a query string being passed to the page (m=1,2), which being comma separated, is then split to create an array like the following:

['1', '2']

我需要做的是找到所有的'标志'，其中ID（标记[I] [4]）来自查询字符串。

What I need to do is find all 'markers' where the ID (markers[i][4]) comes from the query string.

什么是实现这一目标的最佳途径？理想我想创建相同的格式为标记，但只显示从查询字符串结果的第三个阵列。

What would be the best way to achieve this? Ideally I want to create a 3rd array in the same format as 'markers' but only showing the results from the query string.

任何帮助将大大AP preciated。

Any help would be greatly appreciated.

感谢

推荐答案

一种选择是使用嵌套循环：

One option is to use nested loops:

var markers = [
    ['Title', 15.102253, 38.0505243, 'Description', 1], 
    ['Another Title', 15.102253, 38.0505243, 'Another Description', 2],
    ['Title 3', 15.102253, 38.0505243, 'Description 3', 3], 
];
var search = ['1', '2'];
var result = [];

for (var i = 0; i < search.length; i++)
    for (var j = 0; j < markers.length; j++)
        if (search[i] == markers[j][4]) {
            result.push(markers[j]);
            break;
        }

console.log(result);

DEMO： http://jsfiddle.net/3TErD/

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