angularjs

$q 链式操作

angular.module('ecApp',[])
    .controller('testController',function($http,$scope,$q,$timeout) {
        function okToGreet(name) {
            return name == "andy";
        }

        function asyncGreet(name) {
            var deferred = $q.defer();

            setTimeout(function () {
                deferred.notify('About to greet ' + name + '.');

                if (okToGreet(name)) {
                    deferred.resolve('Hello,' + name + '!');
                } else {
                    deferred.reject('Greeting ' + name + ' is not allowed.');
                }
            },1000);

            return deferred.promise;
        }


        var df = $q.defer();
        var promise = df.promise = asyncGreet("andyf").then(function() {
            return "KLOK";
        },function() {
            return $q.reject("KLNOOK");
        });

        promise.then(function(data) {
            console.log(data);
        },function(data) {
            console.log(data);
        });

    });