How can i stop ajax request (don't wait untill response come)?

Question

If I use Ajax to send request and this request take long time ..... if I want to send anther request what should I do?

the current behaviour the second request

Answer 1

The XMLHttpRequest object has an abort function. You can use setTimeout to abort a request that is taking too long.

EDIT: In the case you do not want to use a timer, and a new event occurs that should abort the prior request, then the event handler should do the following

if(!this.request) return;  // request contains the XMLHttpRequest
this.request.onreadystatechange = function() {};
if(this.request.readyState != 4) {
    this.request.abort();
}

Then after that you can create the new XMLHttpRequest object.