Angularjs Service — Value and Constant Services

Value Services

• Shorthand for factory with no parameters
• Cannot be injected into a module configuration function
• Can be overridden by an AngularJS decorator

Example using value

 angular.module('app')
        .value('clientId', 'a12345654321x');

Constant Services

• Simply registers service with injector, no factory/provider calls
• Can be injected into a module configuration function
• Cannot be overridden by an AngularJSdecorator

Example

angular.module('app')
        .constant('constants', {
            APP_TITLE: 'My App',
            APP_DESCRIPTION: 'Description here.',
            APP_VERSION: '0.0.1'
        });