Get Image Url from column "EncodedAbsUrl" using CSOM

Question

Currently creating a SharePoint hosted APP.

I am trying to get image URL from Picture Library (Collection) with Column internal name EncodedAbsUrl using CSOM , I have picture lib Collection but not yet succeed,

    var libraryName ="Image Slider";
    var camlQuery=new SP.CamlQuery();
   camlQuery.set_viewXml="<view><Query><Where><IsNotNull><FieldRefName='EncodedAbsUrl' /></IsNotNull></Where><Query></view>";
    libraryItems = library.getItems(camlQuery);
    var listEnumerator = libraryItems.getEnumerator();
    var currentItem = listEnumerator.get_current();
   //here Not getting **EncodedAbsUrl** column value

        var imagePath=currentItem.get_item("EncodedAbsUrl"); 
        var link=currentItem.get_item("URL");

Answer 1

You need to load the items and then call executequeryasync. Something like:

clientContext.load(libraryItems, 'Include(EncodedAbsUrl,URL)');
clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));

Then in the success method, you can get the field values. Check this for more information on how to get list items using JavaScript client object model: https://msdn.microsoft.com/en-us/library/office/hh185007(v=office.14).aspx