将具有style =“display：none”的图像仍然是下载和缓存？ [英] Will an image with style="display: none" still be downloaded and cached?

问题描述

我想找出一种方法来缓存我的画廊脚本中的下一张和以前的图片...我想知道这是否是一个好的方法。

I'm trying to figure out a way to cache the next and previous images in my gallery script ... I'm wondering if this is a good way to do it. Also, is there any way to manually specify the cache time for the downloaded image?

推荐答案

显示： none 图像将在客户端上下载并缓存。但是，JavaScript已经有一个明确定义的预加载图像的方式：

display: none images will be downloaded and cached on the client. However, JavaScript already has a well-defined way of preloading images:

  var nextImage = new Image();
  nextImage.src = "your-url/newImage.gif";

这会预先加载图片，而不会显示给用户。

This will preload an image without displaying it to the user.

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