Javascript Ninja: What skills make for "intermediate"?

[Steven Wall]

I have seen that this book is for the "intermediate" JavaScript developer. Could you elaborate more about what skills are necessary in your opinion to be considered "intermediate"? As someone who has mostly used Java web frameworks (Grails, GWT, etc.) for client side development, I have not written a ton of Javascript. Though I have written small web apps using HTML, jQuery, JS and CSS. Just wondering, in your opinion, how high the bar is to be "intermediate".

Thanks!

[Bear Bibeault]

In short: if you can write basic JavaScript statements and functions, you should be OK. If the concept of for loops, function calling, and parameter passing seem like voodoo to you, you might get quickly lost.

Longer answer in this topic.