7 principles of rich web applications

And in 2010 they introduced Instant Search, which puts JS front and center by skipping the page refresh altogether and transitioning to the "search results" layout as soon as you press a key as we saw above.

Another prominent example of layout adaptation is most likely in your pocket. Ever since the early days, iPhone OS would request app authors to provide a default.png image that would be rendered right away, while the actual app was loading.