Question

I have a class like this :

var MyClass = function(){  
    this.field = 'field';  
}  
MyClass.prototype.doSth(data){  
    //doSth with data and this.field;   
}  
MyClass.prototype.getData(){  
    $.ajax({  
        type: "post",  
        url: 'myurl',  
    }).success(this.doSth);  
}

but in doSth all ‘this’ point to the jquery ajax object not MyClass instance.

I added a static filed _self to point MyClass self MyClass._self = this; then change all the this to MyClass._self in doSth can fix. But I think this is ugly.

I want to know is there any way to solve my problem with out modify doSth body?

Answer 1

You can pass an object using the context parameter to be used int he callbacks.

$.ajax({  
    type: "post",  
    url: 'myurl',
    context: this
}).success(function(d){
  this.doSth(d);
});