Flash's Clipboard API used to be the only available means for creating advanced clipboard functionality, but this is now available in web standards.
Operating systems all have standard clipboard (i.e. Copy/Paste/Cut) functionality built in, but what if you want to do something a bit more complex, such as having a button that triggers the copying of a certain text selection?
The Flash Clipboard API provided such functionality, but fortunately modern browsers now have functionality available to do the same things, without having the Flash Player present or having to attach a Flash movie to your page. The relevant APIs are:
The clipboard.js library: The best solution for rapidly implementing clipboard functionality on web applications.