Function interval

OpenReservation/wwwroot/Scripts/angular.js:12334–12375

* @ngdoc service * @name $interval * * @description * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay` * milliseconds. * * The return value of

(fn, delay, count, invokeApply)

                 * </example>
                 */
                function interval(fn, delay, count, invokeApply) {
                    var hasParams = arguments.length > 4,
                        args = hasParams ? sliceArgs(arguments, 4) : [],
                        setInterval = $window.setInterval,
                        clearInterval = $window.clearInterval,
                        iteration = 0,
                        skipApply = (isDefined(invokeApply) && !invokeApply),
                        deferred = (skipApply ? $$q : $q).defer(),
                        promise = deferred.promise;

                    count = isDefined(count) ? count : 0;

                    promise.$$intervalId = setInterval(function tick() {
                        if (skipApply) {
                            $browser.defer(callback);
                        } else {
                            $rootScope.$evalAsync(callback);
                        }
                        deferred.notify(iteration++);

                        if (count > 0 && iteration >= count) {
                            deferred.resolve(iteration);
                            clearInterval(promise.$$intervalId);
                            delete intervals[promise.$$intervalId];
                        }

                        if (!skipApply) $rootScope.$apply();
                    },
                        delay);

                    intervals[promise.$$intervalId] = deferred;

                    return promise;

                    function callback() {
                        if (!hasParams) {
                            fn(iteration);
                        } else {
                            fn.apply(null, args);
                        }
                    }
                }

                /**
                 * @ngdoc method