Call Method (Function) (JavaScript)

Call Method (Function) (JavaScript)invokes the method of an object, replacing the current object with another object. Grammar

Call ([thisobj[, arg1[, arg2[,  [, ArgN]]])

 parameter  
 

 
   
 
  thisobj  
 
    
 
 
     
  
 optional.   
 
    
 
 
    
 
 
     
   arg1, arg2, ArgN  
    
 
 
  
 

   
  

  
Optional. The argument list that will be passed to the method
  

   
  

  
Note
  

   
  

  
call  The   method is used to invoke a method that represents another project.   It allows you to change the function  this    object from the initial context to the  thisobj    new object specified. 
  

   
  

  
If the thisobj parameter is not provided, the global object is used as the thisobj.
  

  
 
The following code demonstratesPagerMethod
 

function Add (A, B)

{Console.info (this);Console.info (A+B);  } function sub (a, b) {console.info (a); }

Call

Add.call (sub,3,1);

Result output

Call

Add.call (' "HH" ', 3,1);

Add.call (3,1);

The second paragraph of the procedure

function Animal () {

THIS.name = "Animal"; This.showname = function () {Console.info (this);Console.info (this.name);    }} function Cat () {this.name = "cat";    } var animal = new animal ();         var cat = new Cat ();    Animal.showName.call (Cat, ",");   Animal.showName.call (CAT); Animal.showName.call ();

Third paragraph procedure

function Animal (name) {

THIS.name = name;        This.showname = function () {console.info (' call ', this);          Console.info (this.name);    }} function Cat (name) {Console.info ("init", this);    Animal.call (this, name);     } var cat = new Cat ("Black cat");  Cat.showname (); Console.info (Cat.showname);

Call Method (Function) (JavaScript)