Very useful Javascript feature that can prevent a user from losing the data they are entering in an entry field or text editor in case of unintentional leaving of a page.
If you are a Instgram user, then you most probably notices the smilies or so called emoticons people are typing in comments. Let me show you how to use emoticons on your iPhone or iPad.
If you are on a certain data plan on your mobile provider, and don't want to exceed it, you can set data usage warning and a limit which can help you save some of your money.
