javascript.jquery.core.sheet

 # jQuery Core
 
 $(fn)                     Same as $(document).read(function(){})                   
 $(selector)               Query DOM using css selectors                            
 $(selector, context)      Query context using css selectors                        
 $(html)                   Construct elements (IE requires "type" attr for inputs)  
 $(elements)               Construct jQuery object from one or more elements        
 $(jQuery)                 Passes jQuery objects through                            
                                                                                    
 ## Accessors                                                                       
                                                                                    
 $(...).get(index)         Get DOM element at the given index                       
 $(...).length             Number of DOM elements matched                           
 $(...).size()             Number of DOM elements matched                           
 $(...).selector           Return selector string used                              
 $(...).context            Return context used                                      
 $(...).each(fn)           Iterate using fn callback; 'this' becomes the element    
 $(...).index(element)     Return index of the given element or -1                  
                                                                                    
 ## Data                                                                            
                                                                                    
 Data methods refer to first element in the collection.                             
                                                                                    
 $(...).data(key)          Get data for key if present                              
 $(...).data(key, val)     Set data for key to val (strings, objects, etc)          
 $(...).removeData(key)    Remove data for key                                      
                                                                                    
 ## Plugins                                                                         
                                                                                    
 $.fn.extend({                                                                      
   check: function(){                                                               
     return this.each(function(){                                                   
       this.checked = true                                                          
     })                                                                             
   }                                                                                
 })                                                                                 
                                                                                    
 $(...).check()                                                                     
                                                                                    
 $.extend({                                                                         
   say: function(msg) {
     alert(msg)
   }
 })
 
 $.say('hey')