angular-singleton.js

angular.module('cbj', [])
    .provider('singletonProvider', function() {
        console.log('provider created');
        this.$get = function () {
            console.log('provider $get called');
            return {provider: 1};
        };
    })
    .factory('singletonFactory', function() {
        console.log('factory created');
        return {factory: 1};
    })
    .service('singletonService', function() {
        console.log('service created');
        this.service = 1;
    })
    .constant('singletonConstant', (function () {
        console.log('constant created');
        return {constant: 1};
    })())
    .value('singletonValue', (function () {
        console.log('value created');
        return {value: 1};
    })());
var inj = angular.injector(['cbj']);

console.log(inj.get('singletonProvider'));
inj.get('singletonProvider').pro = 3;
console.log(inj.get('singletonProvider'));
console.log(inj.get('singletonFactory'));
inj.get('singletonFactory').pro = 3;
console.log(inj.get('singletonFactory'));
console.log(inj.get('singletonService'));
inj.get('singletonService').pro = 3;
console.log(inj.get('singletonService'));
console.log(inj.get('singletonValue'));
inj.get('singletonValue').pro = 3;
console.log(inj.get('singletonValue'));
console.log(inj.get('singletonConstant'));
inj.get('singletonConstant').pro = 3;
console.log(inj.get('singletonConstant'));