javascript - Any significant reasons not to use AJAX? -

javascript - Any significant reasons not to use AJAX? -

i'm planning on making web app quite ajax heavy.

before do, i'm wondering people think of such sites. there important reasons not this?

btw, no need mention seo reasons. also, think benefits create fact people without javascript have limited experience (though i'm open beingness convinced otherwise).

it depends on how plan utilize it, imo.

1) if site absolutely fail without it, excluding users scripting disabled. think fair in many scenarios limit but not remove functionality no-script users (for example, google doesn't autocomplete searches if have scripting disabled; can't...but basic search still works).

2) right techniques need used in right place. example, asp.net updatepanel perform horribly if dump thousands of elements it.

3) becoming bigger , bigger fan of content loaded in little blocks on page not require total refresh nor require whole page executed again. lends soa nicely, more subject limits of #1.

4) edit: don't create ui elements (due ajax) behave unexpectedly. example, 1 time built dropdown list populated when toggled. because of latency , dom creation time, wasn't responsive. furthermore, size alter based on elements dynamically added. propose ways around these problems, still wrong utilize of technology.

javascript ajax web-applications