Continue to encapsulate the module functionality of the jquery framework

The function of the framework selector module has been encapsulated in the first two days, in order to maintain the integrity of the code and to embody the functionality of the Framework module. Here, a H5 method is used to simply represent the selector module.

1(function(window) {//The window Global object is passed in to reduce the depth of access to the scope2      //1. Selector module3         varselect = (function () {4             return function(Selector, context) {5                 if(context) {6                     returnContext.queryselectorall (selector);7}Else {8                     returnDocument.queryselectorall (selector);9                 }Ten             } One         }()); A      //2. Entry function of frame -      functionItcast (selector,context) { -     return NewItcast.fn.init (selector,context); the      } -  -    varpush = Array.prototype.push;//Save the Push method of the array - //3. Adding a prototype attribute method +Itcast.fn = itcast.prototype={ - Constructor:itcast, +Splice:Array.prototype.splice,//saves the splice method of the array as a property of the current object, which makes it easy to invoke AInit:function(selector,context) { at         if(Selector = =NULL)return  This; -         //Use the splice method of the array to empty the original element -          This. Splice.call ( This, 0, This. length); -         if(typeofselector = = = "string"){ -            if(Selector.charat (0) = = = "<" && Selector.charat (selector.length-1) = = = ">" && selector.length> =3){ -                  //The case that selector is a string with a label in                  vardiv = document.createelement ("div"); -                  //Div is actually as an intermediate amount, convenient to store elements in a pseudo-array form into the Init object todiv.innerhtml =selector; +Push.apply ( This, div.childnodes); -}Else{ thePush.apply ( This, select (Selector,context); *            }     $}Else if(Selector.nodetype) {//Selector is the case of a DOM elementPanax Notoginseng              This[0] =selector; -              This. length =1; the         } +         return  This;//returns the current Init object for chained programming A     } the }; +  - //4. Change the INIT function's prototype object below, so that the instance object of Init can access the method in Incast.fn $Itcast.fn.init.prototype =Itcast.fn; $  - //5. Encapsulate a extend method for subsequent extension methods - //The main function of the Extend method is to complete the copy and copy the methods and properties from one object to another . theItcast.fn.extend = Itcast.extend =function(){ -     varTarget//target ObjectWuyi     varSources =[];//Source Object the     if(arguments.length===1){ -target = This; WuSources.push (arguments[0]); -}Else{ Abouttarget = Arguments[0]; $ sources.push.apply (sources,arguments); -Sources.splice (0,1);//Remove the first element because the first element is the target object -     } -      for(vari=0;i<sources.length;i++){ A         varSource =Sources[i]; +          for(varKeyinchsource) { thetarget[key]=Source[key]; -         } $     } the     returnTarget//returns the target object after the copy the } the}) (window)

Oh! It's 12 o'clock, so write it today.

Continue to encapsulate the module functionality of the jquery framework