取消先前的ajax请求jQuery

这是我需要多个请求并仅处理最后一个请求时使用的模式：

var fooXHR, fooCounter=0;$(...).bind( 'someEvent', function(){  // Do the Right Thing to indicate that we don't care about the request anymore  if (fooXHR) fooXHR.abort();  var token = ++fooCounter;  fooXHR = $.get( ..., function(data){    // Even aborted XHR may cause the callback to be invoked    if (token != fooCounter) return;    // At this point we know that we're using the data from the latest request  });});