jquery call method and apply method contact

Call method :
Grammar:Call ([thisobj[,arg1[, arg2[, [,. ArgN]]])
Definition: Invokes one method of an object, replacing the current object with another object.
Description
The call method can be used to invoke a method in place of another object.The call method can change the object context of a function from the initial context to the thisobj  the specified new object.  ,
If no  thisobj  parameter is provided, then  global The   object is used as  thisobj.  

Apply method:  
Syntax: Span lang= "en-US" >apply ([Thisobj[,argarray]])  
Definition: One method of applying an object that replaces the current object with another object.  
Description:  
if  argarray  is not a valid array or is not a  arguments  object, it will result in a  typeerror.  ,
If no  argarray  and  thisobj are provided   any parameter, then  global  object will be used as  thisobj and cannot be passed any parameters.  

<script language= "JavaScript" ><!--/** Define a animal class*/      functionAnimal () { This. Name = "Animal";  This. ShowName =function() {alert ( This. Name); }       }       /** Define a cat class*/      functionCat () { This. Name = "Cat"; }             /** Create two classes of objects*/      varAnimal =NewAnimal (); varCat =NewCat (); //using the call or Apply method, the ShowName () method that originally belonged to the animal object is given to the current object, Cat.     //The input result is "Cat"Animal.showName.call (Cat, ","); //animal.showName.apply (cat,[]);                   //--></script>

< Span lang= "en-US" > < Span lang= "en-US" > &NBSP;

The above code, either with the Animal.showName.call or the animal.showName.apply method, results in a string that outputs a "Cat". Indicates that the caller of the ShowName method was replaced with a cat object instead of the animal that originally defined it . This is the magic of Call and apply Method!

Turn: http://blog.csdn.net/hackerhope/article/details/6174895

jquery call method and apply method contact