gistfile1.js

'use strict';

/**
 * @ngdoc service
 * @name toPromiseApp.toPromise
 * @description
 * # toPromise
 * # a service call for wrapping synchronous calls to result in a promise.
 */
angular.module('toPromiseApp')
  .factory('toPromise', [
        '$q',
        '$timeout',
        function ($q, $timeout) {
            return function(arg) {
                var fn = arg;
                return function() {
                    var result = $q.defer();
                    var applyArgs = arguments;
                    $timeout(function() {
                        result.resolve(Function.prototype.apply(fn, applyArgs));
                    }, 0);
                    return result.promise;
                }
            };
        }
    ]);