How to convert jQuery.serialize() data to JSON object?

Question

Is there any better solution to convert a form data that is already serialized by jQuery function serialize(), when the form contains multiple input Array fields. I want to

Answer 1

I'm using this very little jQuery plugin, that I've extended from DocumentCloud:

https://github.com/documentcloud/documentcloud/blob/master/public/javascripts/lib/jquery_extensions.js

It is basically two lines of code, but it requires _.js (Underscore.js), since it is based on a reduce function.

$.fn.extend({
  serializeJSON: function(exclude) {
    exclude || (exclude = []);
    return _.reduce(this.serializeArray(), function(hash, pair) {
      pair.value && !(pair.name in exclude) && (hash[pair.name] = pair.value);
      return hash;
    }, {});
  }
});

Extensions:

• It doesn't serialize an input value if it's null
• It can exclude some inputs by passing an array of input names to the exclude argument i.e. ["password_confirm"]