Every programmer's dirty little secret today is that Google serves as the primary language reference. That works pretty well for a quick check of the parameters for a particular object, but I do have a few favorite reference sites. The one at W3Schools is pretty comprehensive, but in the process goes into detail about features you'll absolutely never need, like new Boolean(value). The DevGuru guide uses a very different organization but is also relatively comprehensive. However, it also has some errors in the details that I'll cover in future entries.