从多维数组中删除元素 [英] Remove element from multidimensional array

问题描述

我有以下多维数组:

{"2":{"cid":"2","uid":"2"},"1":{"cid":"1","uid":"3"}}

在此示例中，我要删除

"1":{"cid":"1","uid":"3"}

.我已经尝试了在stackoverflow上找到的所有解决方案，但无法使它们中的任何一个起作用.我主要是php人，所以在这里我可能会错过一些重要的事情吗?

from it. I have tried all solutions that i found on stackoverflow, and could not make any of them work. I am mostly php person, so i might miss something important here?

推荐答案

只需将 delete 与相应的属性一起使用.

Just use delete with the appropriate property.

var obj = {"2":{"cid":"2","uid":"2"},"1":{"cid":"1","uid":"3"}};

delete obj["1"];

注意1周围的"，将其标记为标识符而不是数组索引！

Note the " around the 1 to mark it as an identifier and not as an array index!

编辑正如注释中指出的那样，无论您如何寻址 [1] 属性， obj 是一个对象，并且没有数组.我的最后一句话只是为了清楚说明您正在使用对象而不是数组.

EDIT As pointed out in the comment, obj is an object and no array no matter how you address the [1] property. My last note was just to make it clear that you are working with an object and not an array.

根据我的经验，大多数人将整数属性与数组关联，并将字符串属性与对象关联.因此，我认为以指定的方式突出显示该属性可能会更有用.

In my experience most people associate integer properties with arrays and string properties with objects. So I thought it might be more helpful to highlight the property in the way given.

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