Picture gallery is a very specific example. But overall, fast-responding website tend to keep people longer and convert more. This JavaScript helps to do so. The cool point is that it’s a “smart” approach of only pre-loading things mostly on demand – not just loading every single link from the current page. Handy for pages with a lot of links.
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… dramatically increase your web-server load and traffic. In most cases useless, imho.
Web server is easily scalable though.
This is not a reason to scale up your server =) We had similar approach on my previous work for picture gallery – than got rid of it.
Picture gallery is a very specific example. But overall, fast-responding website tend to keep people longer and convert more. This JavaScript helps to do so. The cool point is that it’s a “smart” approach of only pre-loading things mostly on demand – not just loading every single link from the current page. Handy for pages with a lot of links.
Arguably, perhaps for very special applications. And o’key, I’ll keep in my favorites just in case =)