Retrieve File Extension on Upload

Forms SharePoint Online
1

Is there a way to retrieve the file extension when uploading using the List or Library Control?

2

Dear @cwalter2,
Please, try the following:

fd.control('SPDataTable1').$on('filesUploaded',
    function(itemIds) {
        //get document library by Title
        var library = pnp.sp.web.lists.getByTitle('Documents');
         for(var i = 0; i < itemIds.length; i++){
                library.items.getById(itemIds[i]).select('FileRef').get().then(function(item){
					var uri = item.FileRef;
					var extension = uri.substring(uri.lastIndexOf("."));
                    console.log(extension);
                });
            }
    });
3

That got it thanks you