我这里有一段js，在三个瀑布流里面找出高度最小的一个，接下来我要把图片添加到这个瀑布流里面。我的js是这么写的，感觉不是很好看。怎么样简化会更好一些?

    var leftImageList = $("#leftImageList");
    var middleImageList = $("#middleImageList");
    var rightImageList = $("#rightImageList");
    var leftHeight = leftImageList.height();
    var middleHeight = middleImageList.height();
    var rightHeight = rightImageList.height();

    var d = {};
    d[leftHeight] = leftImageList;
    d[middleHeight] = middleImageList;
    d[rightHeight] = rightImageList;
    var targetImageList = d[Math.min(leftHeight, middleHeight, rightHeight)];
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