未捕获的异常：控制台内存不足

Question

我面临的3个问题是

未捕获的异常：内存不足（在firefox中） 随机加载资源失败：请求超时。 即使json数据被立即拉出，看起来像seInterval正在添加滞后以在表格数据显示或google规范中显示结果

我在代码

中做错了什么

var url = 'http://example.com/json';
var sensorData;

function removeTable(id)
  {
      var tbl = document.getElementById(id);
      if(tbl) tbl.parentNode.removeChild(tbl);
  }

document.addEventListener('DOMContentLoaded', function() {

  if (jscd.mobile){
    removeTable("gaugeTable")
    document.getElementById("gaugeTable").innerHTML = "";
  }
}, false);

(function (window) {
    {
        var unknown = '-';
        // browser
        var nVer = navigator.appVersion;
        // mobile version
        var mobile = /Mobile|mini|Fennec|Android|iP(ad|od|hone)/.test(nVer);
    }
    window.jscd = {

        mobile: mobile,

    };
}(this));




$(window).load(function(){
   setInterval(function() {
   jQuery.support.cors = true;
if (jscd.mobile){
   $.ajax({
      url: url,
      data: {
         format: 'json'
      },
      error: function(jqXHR, textStatus, errorThrown) {
alert(textStatus + ': ' + errorThrown);
},
      dataType: 'json',
      crossDomain: true,
      success: function(sensorData) {
        // set the sensor data pulled from arduino to global variable sensorData


             var tempHumidData = sensorData.arduino;
            renderHTML(tempHumidData);

      },

      type: 'GET'
   });
 }
}, 10000);
});



function renderHTML(data)
{
  if (data){
   var sensorDataContainer = document.getElementById("displaySensorData");
   var htmlString = "<table id='headTable' style='width:100%'><tr><th>Location</th><th>Temperature</th><th>Humidity</th></tr>";
   for (i = 0; i < data.length; i++){
      htmlString += "<tr align='center'><td>"+ data[i].location + "</td><td>" + data[i].temperatureInC + "&deg;C/ " + data[i].temperatureInF + "&deg;F </td> <td> " + data[i].humidity + "%</td></tr>";
   }
   htmlString += "</table>"
   // sensorDataContainer.insertAdjacentHTML('beforeend', htmlString);
   sensorDataContainer.innerHTML = htmlString;
   }
}

//------------- Google Gauge -------------------//

// global variables
var chart, humidityChart, data, humidityData;
// maximum value for the gauge
var max_gauge_value = 70;
// name of the gauge
var gauge_name = 'Temperature';
var outTemp, drwngRomTemp, outHumidity, drwRomHumid;

var hoptions = {
animation:{
      duration: 1000,
      easing: 'inAndOut'
    },
  min: 0,
  max: 100,
  redFrom: 90, redTo: 100,
  yellowFrom:75, yellowTo: 90,
  minorTicks: 5
};

// load the google gauge visualization
google.load('visualization', '1', {'packages':['gauge']});
google.setOnLoadCallback(initChart);

// display the data
function displayData(outTemp, drwngRomTemp, outHumidity, drwRomHumid) {
    chart.draw(data, options);
    data.setValue(0, 0, gauge_name);
    data.setValue(0, 1, outTemp);
    data.setValue(1, 0, gauge_name);
    data.setValue(1, 1, drwngRomTemp);
    humidityChart.draw(humidityData, hoptions);
    humidityData.setValue(0, 0, "Humidity");
    humidityData.setValue(0, 1, outHumidity);
    humidityData.setValue(1, 0, "Humidity");
    humidityData.setValue(1, 1, drwRomHumid);
    removeTable("pullingDataMsg")
}

// load the data
function loadData() {
      // get the data from arduino

    $.ajax({
      url: url,
      data: {
         format: 'json'
      },
      error: function(jqXHR, textStatus, errorThrown) {
    alert(textStatus + ': ' + errorThrown);
    },
      dataType: 'json',
      crossDomain: true,
      success: function(sensorData) {
        // set the sensor data pulled from arduino to global variable sensorData
          // get the data point
          outTemp = sensorData.arduino[0].temperatureInC;
          drwngRomTemp = sensorData.arduino[1].temperatureInC;
          outHumidity = sensorData.arduino[0].humidity;
          drwRomHumid = sensorData.arduino[1].humidity;
      displayData(outTemp, drwngRomTemp, outHumidity, drwRomHumid);
      },

      type: 'GET'
   });
  }

  // initialize the chart
  function initChart() {
    var initTempData = {
              "cols": [
                {"id":"","label":"Label","pattern":"","type":"string"},
                {"id":"","label":"Temperature","pattern":"","type":"number"}
              ],
              "rows": [
                {"c":[{"v":"Temperature","f":null},{"v":-20,"f":null}]},
                {"c":[{"v":"Temperature","f":null},{"v":-20,"f":null}]}
              ]
            };

    data = new google.visualization.DataTable(initTempData);



    options = { 
      greenFrom: 10,
      greenTo: 29,
      redFrom: 41,
      redTo: 70,
      yellowFrom:30,
      yellowTo: 40,
      majorTicks : ['-10', '0', '10','20','30','40','50', '60', ''],
      minorTicks: 5 ,
      animation:{
              duration: 1000,
              easing: 'inAndOut'
            },
      min: -20,
      max: 70,
      greenColor: '#CCFFCC',
      yellowColor: '#FFFFCC',
      redColor: '#F78181'
    };

    chart = new google.visualization.Gauge(document.getElementById('gauge_div'));

    var initHumidData = {
              "cols": [
                {"id":"","label":"Label","pattern":"","type":"string"},
                {"id":"","label":"Humidity","pattern":"","type":"number"}
              ],
              "rows": [
                {"c":[{"v":"Humidity","f":null},{"v":0,"f":null}]},
                {"c":[{"v":"Humidity","f":null},{"v":0,"f":null}]}
              ]
            };


    humidityData = new google.visualization.DataTable(initHumidData);

    humidityChart = new google.visualization.Gauge(document.getElementById('humidity_gauge_div'));


    //displayData(0, 0, 0, 0);
    loadData();

    // load new data every 10 seconds
    setInterval('loadData()', 5000);
  }