variables - What is the best-practice casing style for javascript? Why?

Question

One aspect of javascript that it's hard to find information on is casing practices. By casing practices, I mean what casing style (ie. camel-case, pascal-case, etc) should be used for what elements (Constructors, private functions, public functions).

The only rule I've heard was from a Douglas Crockford lecture on YUI theater, stating that constructors should be the only functions that start with an uppercase letter.

Beyond that there doesn't seem to be many casing standards that people follow in javascript.

Does anyone know any casing best practices for javascript, and why it's reasonable to use them?

Also do you follow a casing style with your .js files?

Answer 1

I prefer PascalCase for constructors and camelCase for everything else. That's the style that JS standard library uses and well... every JS framework I've seen so far :)

And I use all_lowercase naming convention for all files served from web. There are some case-insensitive file systems out there.