Is the Facebook JavaScript SDK something I download and upload to my server? Or is it something I just call from my own JS?
I am looking at their documentation here:
http://developers.facebook.com/docs/reference/javascript/
But got confused half way through 🙂
The Facebook JavaScript SDK is ran on the client’s system (aka the web browser). The SDK is hosted at Facebook and you only need to include it with
<script src='http://connect.facebook.net/en_US/all.js'></script>. You don’t need to upload it to your server.You use the SDK from JavaScript client-side.
If it’s XFBML that you find confusing: it is translated to HTML and CSS client-side by the JavaScript SDK.