Chapter 4. Speeding Up the Next Visit
So much about computing performance depends on caching. Fundamentally, caching is putting data somewhere after you get it the first time so you can access it much more quickly the next time. On the web, we want to take advantage of caching as often as possible to speed up users’ subsequent visits to the site, keeping in mind that their next visit is quite frequently within seconds of their first, when they ask for another page.
On mobile, as much as anywhere, we want to make the best possible use of caching. The main tools we have for caching on touch devices are the normal browser cache, localStorage, and the application cache. In this chapter we’ll look at normal browser cache, which isn’t as good as it ...
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