Abort an ajax call?

Question

My currentReq var is set to a call back method:

this.currentReq = cb.apply(this,args);

Later I may wish to abort the method if it is an ajax call.

I know I can use:

this.currentReq.abort();

But what if the currentReq is not an ajax call? How can I test for this and only abort if its an ajax call? I get an error when I try and abort on a standard deferred.

Answer 1

You may first test to see if the abort method exists:

if (typeof(this.currentReq.abort) == "function") {
     this.currentReq.abort();
}

Answer 2

If the error is to an undefined method the you should be able to test if the function itself exists

if(typeof this.currentReq.abort === 'function') {
    this.currentReq.abort();
}