Can't access a variable outside a function in a javascript

Question

Hi All,

I am having the following code in a .js file. The issue that I am facing is that i am not able access the updated value of variable "alarmDataArray" in the function "createNameSpace".

I think the problem is with the scope of variable but I am not able to debug it.

(function () {

    "use strict";

    var applicationData = Windows.Storage.ApplicationData.current;
    var localFolder = applicationData.localFolder;
    var alarms = [];
    var a;
    var oneAlarmInfo;
    var alarmDataArray;

    localFolder.createFolderAsync("AlarmData", Windows.Storage.CreationCollisionOption.openIfExists).then(function (dataFolder) {
        dataFolder.getFileAsync("AlarmsInfo.txt").then(function (dataFile) {
            return Windows.Storage.FileIO.readTextAsync(dataFile).then(function (dataFileText) {
                dataFileText = dataFileText.substr(1, dataFileText.length);
                alarms = dataFileText.split(";");
                a = dataFileText;
                console.log("1" + a);
                alarmDataArray = [];
                for (var i = 0; i < alarms.length; i++) {
                    var ala = alarms[0].split("_");
                    oneAlarmInfo = {
                        name: ala[0],
                        type: ala[1],
                        date: ala[2] + "-" + ala[3] + "-" + ala[4]
                    }
                    alarmDataArray.push(oneAlarmInfo);
                }
                createNameSpace(alarmDataArray);
            }).done(function () { console.log("2" + alarmDataArray[0].date); });
        },
         function error(e) {
     }).done();
    }).done();

    function createNameSpace(alarmDataArray) {
        console.log("3" + a);
        console.log(alarmDataArray[0].date);
        var dataList = new WinJS.Binding.List(alarmDataArray);
        var publicMembers =
        {
        itemList: dataList
        }
        WinJS.Namespace.define("DataExample", publicMembers);
    }
    //console.log("ravi" + DataExample.itemList.getAt(0).date);
})();