Interview Questions

1. In $scope life cycle which service method is used to properly process model modifications ?

Options:

a. $apply

b. $digest

c. $watch

d. $rootscope

Reveal Answer

2. Can we execute angular application with scope less controller.

Options:

a. Yes

b. No

Reveal Answer

3. What is the alternative process to completly get rid of ng-controller from angular applications ?

Options:

a. using "Controller as" syntax.

b. using directives.

c. using "this" keyword.

d. using single page applications

Reveal Answer

4. How to retrieve scope for any DOM element ?

Options:

a. angular.element($0).scope();

b. angular.element(selector).scope();

c. $($0).scope();

d. using Batarang Extension.

e. angular.element(DomElement).scope();

Reveal Answer

5. What will be the output for the following program. <body ng-app="myApp" ng-controller="myCtrl"> {{myname}} </body> <script> app.controller('myCtrl', function () { $rootScope.myname = "HelloWorld"; $scope.myname = "SandeepSoni"; }); </script>

Options:

a. HelloWorld

b. SandeepSoni

c. nothing will get displayed because $scope is not injected.

d. {{myname}}

Reveal Answer

6. What will be the output for the following program. <body ng-app="myApp" ng-controller="myCtrl"> {{myname}} </body> <script> app.controller('myCtrl', function ($scope,$rootScope) { $rootScope.myname = "HelloWorld"; $scope.myname = "SandeepSoni"; }); </script>

Options:

a. HelloWorld

b. SandeepSoni

c. throws error in console saying that myname cannot be overwritten.

d. {{myname}}

Reveal Answer

7. Statement: Views do not get updated when using scope less controllers. Assumptions I. this keyword is not same as $scope. II. $watch services are attached with $scope but not with this keyword.

Options:

a. Only assumption I is implicit

b. only assumption II is implicit

c. Neither I nor II is implicit.

d. Either I or II is implicit.

e. Both I and II are implicit.

Reveal Answer

Interview Questions and Answer

1. In $scope life cycle which service method is used to properly process model modifications ?

2. Can we execute angular application with scope less controller.

3. What is the alternative process to completly get rid of ng-controller from angular applications ?

4. How to retrieve scope for any DOM element ?

5. What will be the output for the following program. <body ng-app="myApp" ng-controller="myCtrl"> {{myname}} </body> <script> app.controller('myCtrl', function () { $rootScope.myname = "HelloWorld"; $scope.myname = "SandeepSoni"; }); </script>

6. What will be the output for the following program. <body ng-app="myApp" ng-controller="myCtrl"> {{myname}} </body> <script> app.controller('myCtrl', function ($scope,$rootScope) { $rootScope.myname = "HelloWorld"; $scope.myname = "SandeepSoni"; }); </script>

7. Statement: Views do not get updated when using scope less controllers. Assumptions I. this keyword is not same as $scope. II. $watch services are attached with $scope but not with this keyword.

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