show/hide/toggle elements - generalized JS

gistfile1.coffee

# General event handler for showing, hiding, and toggling elements.                                                                                                                                                                     
#                                                                                                                                                                                                                                       
# Usage: <a href="x" data-show="#my_form">                                                                                                                                                                                              
# If #my_form exists, we'll call show() on it.                                                                                                                                                                                          
# Otherwise, we'll follow the link to x.                                                                                                                                                                                                
$(document).on 'click', 'a[data-toggle], a[data-show], a[data-hide]', (e) ->                                                                                                                                                            
  link = $(@)                                                                                                                                                                                                                           
  for opt in ['toggle', 'show', 'hide']                                                                                                                                                                                                 
    if link.data(opt)? && $(link.data(opt)).length > 0                                                                                                                                                                                  
      $(link.data(opt))[opt]()                                                                                                                                                                                                          
      e.preventDefault() unless e.isDefaultPrevented()