JavaScript naming conventions

You can follow this Google JavaScript Style Guide

In general, use functionNamesLikeThis, variableNamesLikeThis, ClassNamesLikeThis, EnumNamesLikeThis, methodNamesLikeThis, and SYMBOLIC_CONSTANTS_LIKE_THIS.

EDIT: See nice collection of JavaScript Style Guides And Beautifiers.

As Geoff says, what Crockford says is good.

The only exception I follow (and have seen widely used) is to use $varname to indicate a jQuery (or whatever library) object. E.g.

var footer = document.getElementById('footer');

var $footer = $('#footer');

I follow Douglas Crockford's code conventions for JavaScript. I also use his JSLint tool to validate following those conventions.

One convention I'd like to try out is naming static modules with a 'the' prefix. Check this out. When I use someone else's module, it's not easy to see how I'm supposed to use it. eg:

define(['Lightbox'],function(Lightbox) {
  var myLightbox = new Lightbox() // not sure whether this is a constructor (non-static) or not
  myLightbox.show('hello')
})

I'm thinking about trying a convention where static modules use 'the' to indicate their preexistence. Has anyone seen a better way than this? Would look like this:

define(['theLightbox'],function(theLightbox) {
  theLightbox.show('hello') // since I recognize the 'the' convention, I know it's static
})