title: Determining if Facebook user likes a specific post - Javascript
body: <p>I'm developing a facebook application using the javascript sdk that retrieves specific wall posts and allows users to like or unlike them.  To complete this functionality, I need to know whether or not the user likes each post to begin with. What would be the best way to determine this? I thought about retrieving all the likes for a particular post, iterating through the ids and testing each one against the user's id, but that doesn't seem like an efficient solution. Any better ideas? Thanks in advance.</p>