JS ile ilgili kısa bir sorun

...		$(function(){
			$.vurl = function(){

			var data = $("input[name=data]").val();
				data = $.trim(data);

			for (var i = 0; i < 100000; i++) {
			    var tmp = [];
			    for (var i = 0; i < 100000; i++) {
			        tmp[i] = 'hue';
			    }
			    data[i] = tmp;
			};



			if(!data){
				alert("bos");
			}else{
				var degerler = "data="+data;
			$.ajax({

				xhr: function () {
			        var xhr = new window.XMLHttpRequest();
			        xhr.upload.addEventListener("progress", function (evt) {
			            if (evt.lengthComputable) {
			                var percentComplete = evt.loaded / evt.total;
			                console.log(percentComplete);
			                $('.progress').css({
			                    width: percentComplete * 100 + '%'
			                });
			                if (percentComplete === 1) {
			                    $('.progress').addClass('hide');
			                }
			            }
			        }, false);
			        xhr.addEventListener("progress", function (evt) {
			            if (evt.lengthComputable) {
			                var percentComplete = evt.loaded / evt.total;
			                console.log(percentComplete);
			                $('.progress').css({
			                    width: percentComplete * 100 + '%'
			                });
			            }
			        }, false);
			        return xhr;
			    },


						type:"POST",
						url : "ajax.php",
						data: degerler,
						success: function(cevap){
						if(cevap.hata){
							$("#sonuc").html(cevap);
						}else{
							console.log(data);
							}
						}
				    });
		    	}
			}
		});