javascript - Check if User liked Facebook page or not -


i have following code, button facebook page, , alerts: like, trying check on page load see if user has liked page or not, , alert "page liked" or "page not liked yet".

<div id="fb-root"></div> <script type="text/javascript"> window.fbasyncinit = function() {     fb.init({appid: '637166706299573', status: true, cookie: true, xfbml: true});     fb.event.subscribe('edge.create', function(href, widget) {         alert('thanks like');     }); }; (function() {     var e = document.createelement('script');     e.type = 'text/javascript';     e.src = document.location.protocol + '//connect.facebook.net/en_us/all.js';     e.async = true;     document.getelementbyid('fb-root').appendchild(e); }()); </script> <script type="text/javascript" src="facebook.js"></script> <fb:like href="https://www.facebook.com/tabyeed" layout="button_count" show-faces="true" width="450" action="like" colorscheme="light" font="arial"></fb:like>

i tried didn't work : 

<script type="text/javascript"> function liked() {     fb.api("me/likes/348028968575501", function(response) {         if (response.data.length == 1) {             alert("page liked already");         } else {             alert("page not liked already");         }     }); } </script>

any guys?
thanks

i don't see login button/flow best guess fb.api("me/likes/348028968575501" fail because user isn't authenticated different event subscribe doesn't rely on authentication.


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