Hello friend, I'm newbie to javascript, just trying to learn. can anyone tell me what will be the result of following javascript.. I know this this javascript creates the hyperlink from feed using json method. but how hyperlink's coding will look if we write in html;; eg <a href="#random" rel="????"> is it??? <div id="myLuckyPost" style="text-align:left"></div> <script type="text/javascript"> function showLucky(root){ var feed = root.feed; var entries = feed.entry || []; var entry = feed.entry[0]; for (var j = 0; j < entry.link.length; ++j){if (entry.link[j].rel == 'alternate'){window.location = entry.link[j].href;}}} function fetchLuck(luck){ script = document.createElement('script'); script.src = '/feeds/posts/summary?start-index='+luck+'&max-results=1&alt=json-in-script&callback=showLucky'; script.type = 'text/javascript'; document.getElementsByTagName('head')[0].appendChild(script); } function feelingLucky(root){ var feed = root.feed; var total = parseInt(feed.openSearch$totalResults.$t,10); var luckyNumber = Math.floor(Math.random()*total);luckyNumber++; a = document.createElement('a'); a.href = '#random'; a.rel = luckyNumber; a.onclick = function(){fetchLuck(this.rel);}; a.innerHTML = '<img src="http://1.bp.blogspot.com/_65cjeeYmsMc/TSkSFrxAeEI/AAAAAAAABac/RIRJzeEM6Nc/s1600/random_item_wide_button.png">'; document.getElementById('myLuckyPost').appendChild(a); } </script> <script src="/feeds/posts/summary?max-results=0&alt=json-in-script&callback=feelingLucky"></script> Code (markup):
Looks like this script will render a button which a user can click to fetch a random post from some blog.