logout.md

#.logout(callback)

Log the user out of Facebook. This action will also invalidate any access token that you have for the user that was issued before the logout.

##Parameters

plugin.FacebookAgent.prototype.logout = function(callback){}

Name	Type	Required	Description
callback	Function	No	This callback will be invoked with a result code or an error message.

##Callback function

The callback function definition is showing below, if the user is successfully logged out from Facebook, the result code will be plugin.FacebookAgent.CODE_SUCCEED, otherwise, it will indicate the error code with an error message as the response parameter.

var callback = function (code, response) {}

##Example

// Assuming that facebook is the instance of FacebookAgent
facebook.logout(function(code){
    if(code == plugin.FacebookAgent.CODE_SUCCEED){ //logout succeed
        cc.log("logout succeed");
    } else {
        cc.log("Logout failed, error #" + code + ": " + response);
    }
});