如何打印此javascript对象？

Question

我有以下对象的数据：

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"} 
}; 

我怎么会做如创建一个警报，以显示newborn_set01_03.jpg描述简单的东西？

这显然不工作：

alert(js_images.newborn_set01_03.jpg.description); 

Answer 1

除了点记号，你可以使用括号记号访问对象成员：

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

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