Angular JS naming conventions ($, camelCase and PascalCase)

Question

What is the convention in AngularJS for prefixing providers with $? Should I prefix all custom services in my own code?

Looks like all things that come with angular

Answer 1

1. Use PascalCase for controllers and for functions which return a constructor function that's supposed to be newed, e.g. var user = new User(). Controllers in Angular are viewed as scope constructor functions--thus the PascalCase.

2. Controllers should have Controller appended in their name. See http://demisx.github.io/angularjs/2014/09/14/angular-what-goes-where.html for naming examples.

3. Use camelCase for everything else.

These follow important Javascript conventions that dev around the world got used to.

Answer 2

The docs state this convention for internal services, but also state you should not do it for your own services to reduce naming collisions.

http://docs.angularjs.org/guide/concepts#angular_namespace

Also, regarding camelCase, the docs say to use camelCase.

Angular uses name-with-dashes for attribute names and camelCase for the corresponding directive name

http://docs.angularjs.org/tutorial/step_00

Answer 3

We can filter Text in CamelCase using following code 
 app.filter('camelCase', function(){
            var camelCaseFilter = function(input){
                    var words = input.split(' ');
                     for (var i = 0, len = words.length; i < len; i++)
                         words[i] = words[i].charAt( 0 ).toUpperCase() + words[i].slice(1);
                     return words.join(' ');
                 };
                 return camelCaseFilter;
        });