angularjs比较两个数组 [英] angularjs compare two arrays

问题描述

有，我想知道我怎么能在angularjs比较两个数组，并返回值，如果是有道理的。这里是第一个：

  [{ID：2，student_name：丽莎，外星人：A，世界：太阳，理由：我像这样送one\",\"submit_time\":null},{\"id\":1,\"student_name\":\"Liz\",\"alien\":\"B\",\"world\":\"Earth\",\"justification\":null,\"submit_time\":\"2014-09-25T08:37:34.526-05:00\"}]
 

下面是第二个

<$p$p><$c$c>[{\"id\":1,\"alien\":\"A\",\"world\":\"Sun\",\"color\":\"red\"},{\"id\":2,\"alien\":\"A\",\"world\":\"Mercury\",\"color\":\"red\"},{\"id\":3,\"alien\":\"B\",\"world\":\"Earth\",\"color\":\"red\"},{\"id\":4,\"alien\":\"B\",\"world\":\"Moon\",\"color\":\"red\"},]

所以我要检查，如果在外星人和全球的价值在这两个阵列匹配，那么我可以在颜色从第二阵列值

下面是code我把控制器：

  angular.forEach（ARR1，函数（值，键1）{
    angular.forEach（ARR2，功能（值2，密钥2）{
        如果（value1.alien === value2.alien＆放大器;＆安培; value1.world === value2.world）{
            的console.log（value2.color）;        }
    }）;
}）;
 

我用普通angular.forEach？我怎样才能做到这一点？和我在哪里存储颜色值？

在此先感谢！

解决方案

像邓肯说，这些对象的两个数组，而不是多维数组。这里我用angulars .forEach方法来遍历两个数组然后比较对象的属性。

我添加了一个评论，你会得到你的配色。

  angular.forEach（ARR1，函数（值，键1）{
    angular.forEach（ARR2，功能（值2，密钥2）{
        如果（value1.alien === value2.alien＆放大器;＆安培; value1.world === value2.world）{
            //在这里你抢value2.color
        }
    }）;
}）;
 

下面是一个小提琴

there, I am wondering how I can compare two arrays in angularjs, and return the value if that makes sense. Here is the first one:

[{"id":2,"student_name":"LiSa","alien":"A","world":"Sun","justification":"i like sent this one","submit_time":null},{"id":1,"student_name":"Liz","alien":"B","world":"Earth","justification":null,"submit_time":"2014-09-25T08:37:34.526-05:00"}]

Here is the second one:

[{"id":1,"alien":"A","world":"Sun","color":"red"},{"id":2,"alien":"A","world":"Mercury","color":"red"},{"id":3,"alien":"B","world":"Earth","color":"red"},{"id":4,"alien":"B","world":"Moon","color":"red"},]

So I want to check if the alien and world's value are matching in these two array, then i can get the color value from the second array.

Here is the code I put in the controller:

    angular.forEach(arr1, function(value1, key1) {
    angular.forEach(arr2, function(value2, key2){
        if(value1.alien === value2.alien && value1.world === value2.world){
            console.log(value2.color);

        }
    });
});

Shall I use angular.forEach? How can i do that? and where do I store the color value?

Thanks in advance!

解决方案

Like duncan said, these are both arrays of objects and not multi-dimensional arrays. Here I use angulars .forEach method to loop through both arrays then compare the object properties.

I've added a comment where you would get your matching color.

angular.forEach(arr1, function(value1, key1) {
    angular.forEach(arr2, function(value2, key2) {
        if (value1.alien === value2.alien && value1.world === value2.world) {
            // here is where you grab the value2.color
        }
    });
});

Here's a fiddle

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