阵内的JavaScript数组 - 我怎么能叫孩子数组名 [英] Javascript Array inside Array - how can i call child array name
问题描述
下面是我在做什么的例子:
变种大小=新阵列(S,M,L,XL,超大);
VAR颜色=新的Array(红,蓝,绿,白,黑);
VAR的选择=新阵列(大小,颜色);
我在做一个循环选择表格一样的东西它的工作好,但我想获取数组孩子的名字,在这种情况下 - 大小或颜色。当我做警报(选项[0])我得到阵列的所有元素,但对于一些特定的情况下,我想只有数组名,这就像我已经说过的大小/颜色。有没有办法做到这一点?谢谢
我想创建一个对象是这样的:
VAR选项= {
大小:[S,M,L,XL,XXL],
颜色:红,蓝,绿,白,黑]
};
警报(Object.keys(选项));
要individualy访问键:
为(以选择VAR键){
警报(键);
}
PS:当你创建一个新的数组对象不使用新阵列
使用 []
而不是。 p>
Here's the example of what i'm doing:
var size = new Array("S", "M", "L", "XL", "XXL");
var color = new Array("Red", "Blue", "Green", "White", "Black");
var options = new Array( size, color);
I'm doing a loop select form thingies which work good, but i want to fetch the Array child name, in this case - size or color. When i'm doing alert(options[0]) i get the whole elements of array, but for some specific case, i want to get only the array name, which is size/color like i've said already. Is there way to achieve that? Thanks
I would create an object like this:
var options = {
size: ["S", "M", "L", "XL", "XXL"],
color: ["Red", "Blue", "Green", "White", "Black"]
};
alert(Object.keys(options));
To access the keys individualy:
for (var key in options) {
alert(key);
}
P.S.: when you create a new array object do not use new Array
use []
instead.
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