How to remove value from FormData

Question

Here is a way to append file to FormData :

  var data = new FormData();   jQuery.each($('#file')[0].files, function(i, file) {           data.append('file-'+i, file);   }); 

is it possible to do as below ?

     data[i].remove();???  or  data[i] = file;?? 

how iIcan remove or modify a value from data

Answer 1

You cannot do anything other than append items to a FormData object. See the Spec. It would be better if you use a dictionary/object to store all the values you want to add/modify before you actually construct the object.

var data = {}; jQuery.each($('#file')[0].files, function(i, file) {   data['file-'+i] = file; });  //modify the object however you want to here  var formData = new FormData(); for (var key in data) {   formData.append(key, data[key]); }