使用索引将数据添加到特定对象属性

I have an object that looks like this:

我有一个看起来像这样的对象：

imgs: {
    img1: {
        on: 0,
        scr: null
    },
    img2: {
        on: 0,
        scr: null
    },
    and so on...
}

What I want is to use the index of a clicked image to reach the specific image property in the object.

我想要的是使用单击图像的索引来到达对象中的特定图像属性。

js:

JS：

MoveUpImg: function(index) {

    Capsule.imgs['img' + index].on = 1;

    // rest of the code
},

This code doesn't work:

此代码不起作用：

Uncaught TypeError: Cannot set property 'on' of undefined

By changing to a specific object property, let's say img2 it works:

通过更改为特定的对象属性，让我们说img2它的工作原理：

Capsule.imgs.img2.on = 1;

...this means that it's something with this line that's the problem:

...这意味着这条线就是问题所在：

Capsule.imgs['img' + index].on = 1;

(of course I've checked that index gives me the correct number and so on)

（当然我已经检查过索引给我正确的数字等等）

1 个解决方案

#1

You are passing img to function but try to access the imgs object

您正在将img传递给函数但尝试访问imgs对象

Should be

应该

MoveUpImg: function(imgs, index) {

instead of

代替

MoveUpImg: function(img, index) {