How to get number of video views with YouTube API?

Here an example that I used in my TubeCount app.

I also use the fields parameter to filter the JSON result, so only the fields that I need are returned.

var fields = "fields=openSearch:totalResults,entry(title,media:group(yt:videoid),media:group(yt:duration),media:group(media:description),media:group(media:thumbnail[@yt:name='default'](@url)),yt:statistics,yt:rating,published,gd:comments(gd:feedLink(@countHint)))";

var channel = "wiibart";

$.ajax({
    url: "http://gdata.youtube.com/feeds/api/users/"+channel+"/uploads?"+fields+"&v=2&alt=json",
    success: function(data){

        var len = data.feed.entry.length;

        for(var k =0; k<len; k++){
            var yt = data.feed.entry[k];
            v.count = Number(yt.yt$statistics != undefined && yt.yt$statistics.viewCount != undefined ? yt.yt$statistics.viewCount : 0);
        }
    }
});