将ajax数据映射到jQuery

I am having the json data as

data.json file

 {

  "response":[
        {"id":1,"name":"Crime","rel":4},
        {"id":2,"name":"Murder","rel":5},
        {"id":3,"name":"Horror","rel":6},
        {"id":4,"name":"Comedy","rel":1},
       {"id":5,"name":"Novel","rel":2,}
     ]
  }

and the ajax call is..

 document.onreadystatechange = function () {
   if (document.readyState == "interactive") {
      $.ajax({
           url: "data.json",
           type: "GET",
           dataType: "json",
         success: function (response) {
           "use strict";
            main(response);
          }
  });
 }
}

and as I want the rel attribute of each item am trying with jquery mapping

    $.fn.tagcloud = function(options) {

       var opts = $.extend({}, $.fn.tagcloud.defaults, options);
      var tagWeights = this.map(function(){
      return $(this).attr("rel");
    });

how can i get response into the above function and where am getting tagWeights empty so how can I retreive tag weights and am trying make it into array

 tagWeights = jQuery.makeArray(tagWeights).sort(compareWeights);

So how can I get the attribute "rel" data

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weixin_33698823
weixin_33698823
2016/05/25 09:29
  • ajax
  • jquery
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