Q Which of the following is not a valid Angular expression?
Function Definition
Q The ng-change directive must be used with ng-model directive.
True
Q What is the output of the following code:
<div ng-app=”myApp” ng-controller=”myCtrl”>
<p ng-bind=”marks_obtained” ng-if=”(marks_obtained/total_marks)*100
>=40” > </p>
</div>
Var app = angular.module(‘myapp’,[]);
App.controller(‘myCtrl’, function($scope){
$scope.marks_obtained = “60”;
$scope. total_marks = “100”;
});
60
Q What is the output of the following code:
$scope.x = 20;
{{ x | number:2}}
20.00
Q Which module is required for routing?
angular-route.js
Q Which of the following is the correct syntax for using the $q.all
method?
«`
$q.all([promise1(),promise2]]).then((values) => {
…
});
«
Q Convenience methods are provided for most of the common request types,
including?
HEAD, PUT, JSONP
All methods are: get(), head(), post(), put() and delete()
Q What is the output
of the following code?
$scope.firstName = «John»,
$scope.lastName = «Doe»
{{ firstName | uppercase }} {{ lastName }}
JOHN Doe
Q Which directive is
allow us to use form?
NG-FORM
Q Which service is used to retrieve or submit data to the remote server?
$http
Q Which of the following syntax is True of filter using HTML Template?
{{ filter_expression | filter :
expression : comparator : anyPropertyKey}}
Q Which module is used for navigate to different pages without
navigating the entire application?
ngRoute
Q Which of the following are methods in an instance of $q.defer() ?
Notify,Resolve, reject
Q The ng-model directive is used for __________.
Two-way data binding
Q AngularJS applies some basic transformations on all requests and
responses made through its $http service?
Note: There may be more than one right answer.
Requests transformations if the data
property of the requested conifg object contains an object, serialize it into
JSON format
Response transformations if an XSRF
prefix is detected, strip it. If a JSON response is detected, deserialize it
using a JOSN parser.
Q What can be injected as dependencies? (Choose all that apply)
Services
AngularJS provides a supreme Dependency Injection mechanism. It provides
following core components which can be injected into each other as
dependencies.
- value
- factory
- service
- provider
- constant
Q A directive is a behavior which should be triggered when specific HTML
constructors are encountered during the _________ process?
Compilation
Q What is the output of the following code?
< div ng-app=»myApp» >
< h1>{{98 | myFormat}}< /h1>
< /div>
var app = angular.module(‘myApp’, []);
app.service(‘myAlter’, function() {
this.myFunc = function (x) {
return x+’%’;
}
});
app.filter(‘myFormat’,[‘myAlter’, function(myAlter) {
return function(x) {
return myAlter.myFunc(x);
};
}]);
98 %
Q When are the filters executed in the angular application?
When their inputs are changed
Q Dynamically loadable DOM template fragment,
called a , through a ?
view, template
Q A promise is an interface that deals with objects that are __ or __
filled in at a future point in time (basically, asynchronous actions)?
returned, get
Q Custom directives are used in AngularJS to extend the functionality of
HTML?
Extend
Q Explain $q service, deferred and promises, Select a correct answer?
• Promises are post processing logics which are executed after some
operation/action is completed whereas ‘deferred’ is used to control how and
when those promise logics will execute.
• We can think about promises as “WHAT” we want to fire after an operation is
completed while deferred controls “WHEN” and “HOW” those promises will execute.
• “$q” is the angular service which provides promises and deferred
functionality.
• All of the above
Q The Promise proposal dictates the following for asynchronous requests?
Note: There may be more than one right answer.
The
Promise has a then function, which takes two arguments, a function to handle
the “resolved” or “success” event, and a function to handle the “rejected” or
the “failure” event
Q How to use AngularJS promises, read the example code?
controller(‘MyCtrl’,
function($scope, $q) {
function longOperation() {
var q = $q.defer();
somethingLong(function() {
q.resolve();
});
return q.promise;
}
longOperation().then(function() {
});
})
Q What is ng-hide directive used for?
Hide a
given control
Q Which of the following is a valid http
get request in AngularJS?
$http({
url : «someUrl»
}).then(function succesFunction(response) {
$scope.content = response.data;
}, function errorFunction(response) {
$scope.content = response.statusText;
});
Q Which of the following directive bootstraps
AngularJS framework?
ng-bootstrap or ng-app
Q
AngularJS supports inbuilt internationalization following types of
filters?
Note: There may be more than one right answer.
numbers
date
currency
Q Which of the following is validation css
class in AngularJS?
All of the above.
Q Which of the following service is used to
handle uncaught exceptions in AngularJS?
$exceptionHandler
Q Out of the following which statement is
equivalent to
< p ng-bind=»foo «>< /p >
<p>{{foo}}</p>
Q Which of the following module is required
for routing?
angular-route.js
Q Which of the following is not a type of an
Angular service?
Controller
Q Which of the
following is not valid feature for Angular templates?
Routes
Q Which Angular service simulate the
‘console’ object methods from Javascript?
Log
Q What is Angular Expression, How do you
differentiate between Angular expressions and JavaScript expressions?
All of the
above
Q Which of the following is true about
lowercase filter?
Lowercase
filter converts a text to lower case text.
Q Which of the following is Angular E2E testing
tool?
Protractor
Q What is the output of the following code:
$scope.data = [1, 2, 3, 4, 5];
< span ng-repeat=»item in data» ng-if=»item > 5 && item < 10
«>{{ item }}< /span >
Nothing is
output
Q What can be following validate data in AngularJS?
$dirty −
states that value has been changed.
$invalid − states that value entered is invalid.
$error − states the exact error.
All of the
above
Q AngularJS service can be
created,registered,created in following different ways?
Note: There may be more than one right answer.
the factory() method
the value() method
the service() method
Q ng-bind directive binds ___.
Model to HTML element.
Q What is the output of the
following code?
< body ng-app=»myApp» >
< !— directive: my-directive — >
< /body>
var app = angular.module(«myApp», []);
app.directive(«myDirective», function() {
return {
replace : true,
template : «<h1>I got printed</h1>»
};
});
<h1 my-directive=»»>I got
printed</h1>
Q What kind of filters are supported the inbuilt
internationalization in AngularJS?
Currency,
date and numbers
Q How can AngularJS promise be used for some
objects? (Choose all that apply)
function getCurrentCall() {
var deferred = $q.defer();
if (!$scope.currentCall) {
$scope.currentCall = 'foo';
}
deferred.resolve();
return deferred.promise;
}
$scope.turnOffLocalAudio = function() {
getCurrentCall().then(function() {
if ($scope.currentCall.chat) {
$scope.currentCall.chat.offLocalAudio(false);
}
}, function() {
// unable to get CurrentCall
});
};
Q Which statement is true regarding templates
in AngularJS?
In
Angular, templates are written with HTML that contains Angular-specific
elements and attributes. Angular combines the template with information from
the model and controller to render the dynamic view that a user sees in the
browser. In other words, if your HTML page is having some Angular specific
elements/attributes it becomes a template in AngularJS.
Q How can a controller be defined assuming app
is the variable for Angular application?
App.controller(‘myCtrl’,
function($scope){----});
Q Pick the correct statement in connection to
the ng-include directive?
It is used
to embed HTML from an external file
Q Select a true statement regarding the
rootrouter concept
The top level Router that interacts
with the current URL location
Q data binding in angularjs is the synchronization between the and the?
Model, view
Q explain directives in angularjs and choose the correct statement?
At a high level, directives are
markers on a DOM element (such as an attribute, element name, or CSS
class).These can be used to create custom HTML tags that serve as new, custom
widgets. AnglarJs has bulid-in directives
Q AngularJS filters ___________.
Format the
data without changing original data
Q which of the following custom filters will uppercase every third
symbol in a string?
«`
app.filter(‘myFormat’, function() {
return function(x) {
var i, c, txt = «»;
for (i = 0; i < x.length; i++) {
c = x[i];
if (i % 3 == 0) {
c = c.toUpperCase();
}
txt += c;
}
return txt;
};
});
«`
Q What is the output of the following code?
< body ng-app=»myApp» >
< !— directive: my-directive — >
< /body>
var app = angular.module(«myApp», []);
app.directive(«myDirective», function() {
return {
replace : true,
template : «<h1>I got printed</h1>»
};
});
<h1 my-directive=»»>I got printed</h1>
Q What is the difference beetween watchGroup and watchCollection
methods?
The `watchCollection` deeply watch the single object
properties, while `watchGroup` watch a group of expressions.
Q Which of the
following correctly sets a height to 100px for an element?
angular.element(‘#element’).style.height = ‘100px’;
Q How AngularJS expressions are different from
the JavaScript expressions?
Angular expressions can be added inside the
HTML templates.
Angular expressions doesn’t support control flow statements (conditionals,
loops, or exceptions).
Angular expressions support filters to format data before displaying it.
All of the
above
Q Which of the
following service components in Angular used to create XMLHttpRequest objects?
Note: There may be more than one right answer.
jsonpCallbacks
httpParamSerializer
httpParamSerializerJQLike
http
httpBackend
xhrFactory
Q Using the following Custom AJAX property
within AngularJs Service?
myApp.factory(‘GetBalance’,
[‘$resource’, function ($resource) {
return $resource(‘/Service/GetBalance’, {}, {
query: { method: ‘GET’, params: {}, headers: { ‘beforeSend’: » } }, isArray:
true,
});
}]);
myApp.factory(‘GetBalance’, [‘$resource’, function ($resource) {
return $resource(‘/Service/GetBalance’, {}, {
query: { method: ‘GET’, params: {}, }, isArray: true,
});
}]);
$.ajax({
type: «GET/POST»,
url: ‘http://somewhere.net/’,
data: data,
beforeSend: »,
}).done().fail();
All of the above
Q What are the filters in AngularJS, Choose the
right answer?
Filters select a subset of items from an
array and return a new array. Filters are used to show filtered items from a
list of items based on defined criteria.
Q What is $rootScope, Choose a True statement?
Scope is a special JavaScript object which plays the
role of joining controller with the views. Scope contains the model data. In
controllers, model data is accessed via $scope object. $rootScope is the parent
of all of the scope variables.
Q Which of the following is the correct syntax
for using filters?
• «`
<ul>
<li ng-repeat=»user in users | orderBy:’country’»>
{{ user.name + ‘, ‘ user.country}}
</li>
</ul>
«`
Q The ng-model directive is used for ____.
Two-way data binding.
Q What is $rootScope, Choose a True statement?
Scope is a special JavaScript object which plays the
role of joining controller with the views. Scope contains the model data. In
controllers, model data is accessed via $scope object. $rootScope is the parent
of all of the scope variables.
Q AngularJS directives can be written in HTML
element as:
All of the above.
Q Which of the following statement is True
about provider?
All of the above
Q How you can Get AngularJs Service from Plain
Javascript using the following code?
angular.injector([‘ng’, ‘error-handling’,
‘module-that-owns-dialogService’ ]).get(«messagingService»).GetName();
Q Angular loads into the page, waits for the
page to be fully loaded, and then looks for ng-app to define its ___
boundaries?
template
Q What is $scope?
It transfers data between a controller and view.
Q Which of the following service is used to
retrieve or submit data to the remote server?
$http
Q Which of the following modules will help with
routing in the Angular application?
ngRoute
Q What are the
services in AngularJS?
Services are singleton objects which are instantiated
only once in app an are used to do the defined task.
Q Which of the following methods make $scope
dirty-checking?
`$watch, $watchCollection`
Q Which of the following code will clickCount
incremented on button click and displayed?
<button ng-click=»clickCount = clickCount + 1″ >
Click me!
</button>
<span> count: {{clickCount}} </span>
Q Which of the following is valid route
definition?
app.config(function($ routeProvider) {
$routeProvider
.when(«/1», { templateUrl : «1.htm»
})
.when(«/2», { templateUrl : «2.htm»
})
.otherwise( {
templateUrl : «default.htm»
})
});
Q Which of the following is true about ng-model
directive?
Both of the above.
Q How can you display the elements which
contains given pattern of a collection?
<ul>
<li ng-repeat=»item in collection | filter:’pattern’ «>
{{ item }}
</li>
</ul>
Q What is the output of the following code:
< div
ng-app=»myApp» ng-controller=»myCtrl» >
< p ng-bind=»marks_obtained» ng-if=»(marks_obtained/total_marks)*100 >=
40″ > </ p>
< /div>
var app = angular.module(‘myApp’, []);
app.controller(‘myCtrl’, function($scope) {
$scope.marks_obtained= «60»;
$scope.total_marks = «100»;
});
60
Q Which way to hold dependencies in Angular
component is more viable ?
The component can have the dependency
passed to it, where it is needed.
Q In which component is it right way to use the
additional libraries? Such as jQuery and etc.
Controller
Q Which of the following is not a valid for
Angular expressions?
Function definition
Q What is deep linking in AngularJS?
Deep linking allows you to encode the state of
application in the URL so that it can be bookmarked.
Q How is it possible to emit some event?
`$emit()`
Q AngularJS
supports i18n/L10n for the following filters out of the box?
date/time
number
currency
Q What is the output of the following code:
$scope.x = 20;
{{ x | number:2 }}
• 20.00
Q Which of the following syntax is True of
filter using HTML Template?
{{ filter_expression | filter :
expression : comparator : anyPropertyKey}}
Q Which of the following custom filters will
uppercase every third symbol in a string?
• «`
app.filter(‘myFormat’, function() {
return function(x) {
var i, c, txt = «»;
for (i = 0; i < x.length; i++) {
c = x[i];
if (i % 3 == 0) {
c = c.toUpperCase();
}
txt += c;
}
return txt;
};
});
«`
Q Which of the following is the best way to
create a shallow copy of an object in Angular?
angular.extend
Q Which directive is responsible for
bootstrapping the AngularJS application?
• ng-app
Q Which of the following statements are true?
Expression
cannot contain condition, loop or RegEx.
Expression cannot declare a function.
Expression cannot contain comma, void or return keyword.
All of the above.
Q For the given
url http://mysite.com:8080/urlpath?q=1 what is the value of the expression
below?
var host = $location.host();
mysite.com
Q What is difference between ng-if and ng-show
directives?
When using ng-show directive,
the hidden elements are placed in DOM with property display: none. directive
ng-if includes those elements in DOM, which are equal to the condition.
Q Which of the
following directives changes CSS-style of DOM-element?
Note: There may be more than one right answer.
`ng-class`
`ng-style`
Q Data binding in AngularJS is the
synchronization between the and the ?
model, view
Q Which of the following directive allows us to
use form?
ng-form
Q How can using ngView directive?
To display the HTML templates or views in the specified
routes.
Q What is the
output for the following code?
’30’ + 35
3035
Q Which of the following statement True of
templates in AngularJS?
In Angular,
templates are written with HTML that contains Angular-specific elements and
attributes. Angular combines the template with information from the model and
controller to render the dynamic view that a user sees in the browser. In other
words, if your HTML page is having some Angular specific elements/attributes it
becomes a template in AngularJS.
Transfer data to and from the UI:Angular.js helps to eliminate almost all of
the boiler plate like validating the form, displaying validation errors,
returning to an internal model and so on which occurs due to flow of
marshalling data.
Deep linking allows you to encode the state of application in the URL so that
it can be bookmarked. The application can then be restored from the URL to the
same state.
All of the above
Q How is it possible to pass parameters in
$http get request?
in property params
Q What are the services in AngularJS?
Filters select a
subset of items from an array and return a new array. Filters are used to show
filtered items from a list of items based on defined criteria.
AngularJS come with several built-in services. For example $http service is
used to make XMLHttpRequests (Ajax calls). Services are singleton objects which
are instantiated only once in app.
Templates are the rendered view with information from the controller and model.
These can be a single file (like index.html) or multiple views in one page
using «partials».
All of the above
Q What type of the attribute directive data
binding is used in code below?
var directive =
function(){
return {
scope: {
myParam: ‘@’
}
}
}
Isolate scope one way string binding. Parent changes
affect child, child changes doesn’t affect parent
Q Do I need to
worry about security holes in AngularJS?
Note: There may be more than one right answer.
Like any other
technology, AngularJS is not impervious to attack. Angular does, however,
provide built-in protection from basic security holes including cross-site
scripting and HTML injection attacks. AngularJS does round-trip escaping on all
strings for you and even offers XSRF protection for server-side communication.
AngularJS was designed to be compatible with other security measures like
Content Security Policy (CSP), HTTPS (SSL/TLS) and server-side authentication
and authorization that greatly reduce the possible attack vectors and we highly
recommended their use.
Transfer data to and from the UI:Angular.js helps to eliminate almost all of
the boiler plate like validating the form, displaying validation errors,
returning to an internal model and so on which occurs due to flow of
marshalling data.
All of the above
Q AngularJS has
default headers which it applies to all outgoing requests, which include the
following?
Note: There may be more than one right answer.
Accept: application/json, text/plain,
Q What makes angular.js better and does?
Registering
Callbacks:There is no need to register callbacks . This makes your code simple
and easy to debug.
Control HTML DOM programmatically:All the application that are created using
Angular never have to manipulate the DOM although it can be done if it is
required.
Transfer data to and from the UI:Angular.js helps to eliminate almost all of
the boiler plate like validating the form, displaying validation errors,
returning to an internal model and so on which occurs due to flow of
marshalling data.
No initilization code: With angular.js you can bootstrap your app easily using
services, which auto-injected into your application in Guice like dependency
injection style.
All of the above
Q What {{::value}} is mean?
The output value
Q How to use and
register decorators in AngularJS?
Note: There may be more than one right answer.
$provide.decorator
Q Which method of $routeProvider redirect to a
specific page when no other route definition is matched?
otherwise()
Q Which of the following provider can be used
to configure routes?
$routeProvider
Q How can you lowercase a given string named
examplePattern?
{{ examplePattern | lowercase }}
Q If you want to observe the changes of full
object $scope.myObj={one:1, two:2}, what way do you choose?
`$scope.$watch(‘myObj’, function(){ … },
true)`
Q
Which of the followings are validation directives?
ng-required
ng-minlength
ng-pattern
All of the above.
Q What is service in AngularJS?
Service is a reusable JavaScript Function.
Q Call angularjs service from simple JS
following code?
angular.module(‘main.app’, []).factory(‘MyService’,
[‘$http’, function ($http) {
return new function () {
this.GetName = function () {
return «MyName»;
};
};
}]);
angular.injector([‘ng’, ‘main.app’]).get(«MyService»).GetName();
Q Which of the following is valid AngularJS
application definition?
var myApp = angular.module(‘myApp’,[]);
Q Which of the following isValid AngularJS
Expression?
{{ 2+2 }}
Q What is $rootScope?
$rootScope is single root object scope
for the app. All other scopes are descendant scope of the root scope.
Q What kind of filters are supported the
inbuilt internationalization in Angularjs?
Currency, date and numbers
Q You can invoke a directive by using following
example?
<w3-test-directive></w3-test-directive>
<div w3-test-directive></div>
<div class=”w3-test-directive”></div>
<!– directive: w3-test-directive –>
Q config phase is the phase during which
AngularJS bootstraps itself.
True
Q Which of the following is true about currency
filter?
Currency filter is a function which takes
text as input.
