get page profile information with plain JS and FB graph
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//testarea
<title>
PipisCrew - Testarea
</title>
$(function()
{
$.get( "http://graph.facebook.com/cocacola", function( data ) {
var x;
x = "Category : " + data.category;
var likes = parseInt(data.likes);
x += "
Likes : " + likes;
var tat = parseInt(data.talking_about_count);
x += "
TAT : " + tat;
var res = (tat/likes) * 100;
x += "
Engagement Rate : " + parseFloat(res).toFixed(2);
$("#result").html(x);
}).fail(function() {
alert('please check the Facebook handle');
});
});
<div id="result">
</div>
FYI the data object returned : 
origin - http://www.pipiscrew.com/?p=3026 js-using-facebook-graph-api