An AngularJS JavaScript definition expression.

See Expression.ELEMENTS for supported AngularJS elements. AngularJS JavaScript definition expressions could be:

• angular.module('moduleName').component()
• angular.module('moduleName').directive()
• angular.module('moduleName').controller()
• angular.module('moduleName').factory()
• angular.module('moduleName').service()
• angular.module('moduleName').constant()
• angular.module('moduleName').service()
• angular.module('moduleName').decorator()
• angular.module('moduleName').filter()
• angular.module('moduleName', [])