How to detect Ctrl+V, Ctrl+C using JavaScript?

Question

How to detect ctrl+v, ctrl+c using Javascript?

I need to restrict pasting in my textareas, end user should not copy and p

Answer 1

If you use the ctrlKey property, you don't need to maintain state.

   $(document).keydown(function(event) {
      // Ctrl+C or Cmd+C pressed?
      if ((event.ctrlKey || event.metaKey) && event.keyCode == 67) {
         // Do stuff.
      }

      // Ctrl+V or Cmd+V pressed?
      if ((event.ctrlKey || event.metaKey) && event.keyCode == 86) {
         // Do stuff.
      }

      // Ctrl+X or Cmd+X pressed?
      if ((event.ctrlKey || event.metaKey) && event.keyCode == 88) {
         // Do stuff.
      } 
    }