如何打印这个javascript对象？

Question

我有以下对象数据：

var js_images = {
"newborn_set01_01.jpg":{"filename":"newborn_set01_01.jpg","title":"First Pic","description":"First description..."},
"newborn_set01_02.jpg":{"filename":"newborn_set01_02.jpg","title":"Second Pic","description":"Second description"},
"newborn_set01_03.jpg":{"filename":"newborn_set01_03.jpg","title":"Third Pic","description":"Third description"}
};

我如何做一些简单的事情，比如创建一个警告来显示newborn_set01_03.jpg的描述？

这显然不起作用：

alert(js_images.newborn_set01_03.jpg.description);

Answer 1

除了点表示法，您还可以使用括号表示法访问对象成员：

alert(js_images["newborn_set01_03.jpg"].description);

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