javascript - Overriding the Jquery ajax success -

hi have base model -

var basemodel = backbone.model.extend({              initialize : function(input){                 // base initialization implementation common concrete models             },              ajaxcall : function(input){                  var dfd = new jquery.deferred();                 $.ajax({                     type: 'get',                     url: input.url,                     success:function(data){                          // on success implementation                            dfd.resolve(data);                     },                     error:function(){                         dfd.reject();                     }                 });                  return dfd.promise();             }  }); 

now, want create concretemodel extends basemodel's fetch function , overrides ajax success

var concretemodel = basemodel.extend({              ajaxcall : function(input){                     basemodel.prototype.ajaxcall.call(this, input);                     // how override ajax success implementation             } 

});

how override ajax success implementation in ajaxcall function of concretemodel.

thanks.

you can define ajax call successful callback 1 of base model method:

var basemodel = backbone.model.extend({      initialize : function(input){         // base initialization implementation common concrete models     },      ajaxcall : function(input){         var dfd = new jquery.deferred();         $.ajax({             type: 'get',             url: input.url,             success:this.onsuccess,             error:function(){                 dfd.reject();             }         });      return dfd.promise();     },     onsuccess: function(data){         // on success implementation            dfd.resolve(data);     } }); 

then override implementation in onsuccess function of concretemodel

var concretemodel = basemodel.extend({     onsuccess: function(data){         alert("hello concrete mode: "+data);     } });