dropzone on load code example

Example 1: dropzone add download button addedfile

//Prepare the drop zone area
var myNewdDropzone = new Dropzone("#idOfForm",  {
    url: "my-ajax.php",
    method: "POST",
    addRemoveLinks: false,
    clickable: true,
    previewTemplate: document.querySelector('#preview-template').innerHTML,
    init : function() {
        this.on("addedfile", function(file) { new_file_added(file); });
        this.on("thumbnail", function(file,fileurl) { new_thumbnail_added(file); });
        this.on("removedfile", function(file) { new_file_removed(file); });
        this.on("totaluploadprogress", function(progress) { display_progress(progress); });
        this.on("queuecomplete", function() { all_files_uploaded(); });
        //this.on("processing", function(file) { new_file_processed(file); });
    }
});

Example 2: dropzone accepted files

<script type="text/javascript">
   Dropzone.options.dropzone = {
        accept: function(file, done) {
            console.log(file);
            if (file.type != "image/jpeg") {
                done("Error! Files of this type are not accepted");
            }
            else { done(); }
        }
    }
 </script>