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Facebook get user Login Status
<html lang="en" prefix="og: http://ogp.me/ns#" xmlns:fb="http://www.facebook.com/2008/fbml">
<head><title>Hello Facebook</title></head>
<body>
<div id="fb-root"></div>
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.init({
appId: YOUR_APP_ID_HERE,
channelURL: '//www.example.com/channel.html', // Channel File
status: true, // check login status
cookie: true, // enable cookies to allow the server to access the session
xfbml: true, // parse XFBML
oauth: true // enables OAuth 2.0
});
// Additional initialization code here
FB.getLoginStatus(function(response) {
if (response.authResponse) {
// logged in and connected user, someone you know
console.log('you know this user!!');
} else {
// no user session available, someone you dont know
console.log('Howdy Stranger!');
}
});
// END additional initialization
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName('head')[0].appendChild(js);
}(document));
</script>
</body>
</html>
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