By now you may have noticed that Search has changed quite a bit in SharePoint 2013. The ResultScriptWebPart powers most of the magic behind the Search Center. It replaces the CoreResultsWebPart that we have been using since SharePoint 2007. ...
As I start writing this post, I know this is going to be one of those posts that covers so much that it is going to hard to cover it all. The point of this post is to give you a high level idea of everything new and changed in Search with SharePoint...