Parse RSS only in Javascript

ggrss.js

//It depends on Google Feed API
//Check <script type="text/javascript" src="https://www.google.com/jsapi"></script> is included in HTML

var ggrss = (function(){
      var cache = [];
      
      return {
        parse: function(url,num,callback){
          google.load("feeds","1");
          //I found that google.load() should not be called while your page is ready, or the page will be cleared
          //So the correct way to load API is loading it before all the DOM loaded

          function initialize() {
            var feed = new google.feeds.Feed(url);
            feed.setNumEntries(num);
            feed.load(function(result) {
              if (!result.error) {
                for (var i = 0; i < result.feed.entries.length; i++) {
                  var entry = result.feed.entries[i];
                  cache.push(entry)
                }
                callback(result.error,cache)
              }
            });
          }
          google.setOnLoadCallback(initialize);
        },

      }
    }())

Example

ggrss.parse("http://36kr.com/feed",10,function(err,result){
  if(!err){
    for(var i = 0; i < result.length; i++){
      console.log(result[i].title);
      console.log(result[i].content);
      console.log(result[i].link);
    }
  }
})