$(this).serialize() — How to add a value?

Question

currently I have the following:

$.ajax({
    type: \'POST\',
    url: this.action,
    data: $(this).serialize(),
});

This works fine, howe

Answer 1

Add the item first and then serialize:

$.ajax({
    type: 'POST',
    url: this.action,
    data: $.extend($(this), {'NonFormValue': NonFormValue}).serialize()
});