Today, in our work as in our life, it is more important know how to find information rather than know the information itself. I mean that a good developer is a person able to find documentation, network, and that share with an open mind.
I am an experienced .NET developer and, believe me, for veryevery project I work on I have to learn new things about the language and development environment. Our work is always more intricate so do not worry. Point your attention at problem solving and then look for help. All the solutions already exist; we must be able to find them.