Jest Questions Answers

Hi Guest

MobileUser

HomePage

Jobs

WalkIn

Articles

:) Latest Topic

AJAX

VB.NET

SQL Query

UDDI

CLASS

JavaScript Questions

SharePoint Interview

SilverLight

WCF

general knowledge

ASP.NET

:) Topic of Day

:) Hot Jobs

ASP.NET Developer(2-5 years)(Location:-Gurgaon(http://www.amadeus.co.in))

Software Developer(0-3 years)(Location:-ZENITH SERVICE.Plot 2N-67 BUNGALOW PLOT NEAR 2-3 CHOWK, NEAR APOORVA NURSING HOME N.I.T. FARIDABAD)

Dot Net Developer(6-7 years)(Location:-Chennai)

Software Developer(3-8 years)(Location:-Bengaluru/Bangalore)

:) Most Searchable

Identify the correct statement in the following in secure programming questions

Different questions on Docker Container Orcas

SaaS supports multiple users and provides a shared data model through ________ model.

In Master-Slave databases, all writes are written to the ____________.

Cassandra Interview Questions Part

Which of the following services is free?

50 Latest questions on Azure

DaaS is utilized for provisioning critical data on demand.

Which of the following is cloud computing key enabling technologies?

Which of the following are secure programming guidelines?

Developers and organizations all around the world leverage ______ extensively.

Classification problems aid in predicting __________ outputs.

In the public cloud, it incurs high CAPEX and less OPEX.

__________ aids in identifying associations, correlations, and frequent patterns in data.

Identify the correct statement in the following in secure programming questions:

:) Quiz System

Computer Quiz

Science Quiz

Banking Quiz

Sports Quiz

GK Quiz

______________ resets all information stored in the mock, including any inital implementation given. View:-17067
Question Posted on 20 Feb 2019

______________ resets all information stored in the mock, including any inital implementation given.
(1)m....

ADS Posted In : Frameworks | Jest

Jest uses ________ and ________ matchers to test a value is with exact equality. View:-16622
Question Posted on 20 Feb 2019

Jest uses ________ and ________ matchers to test a value is with exact equality.
(1)toBeTruthy, toBeFalsy....

ADS Posted In : Frameworks | Jest

Jest records all calls that have been made during mock function and it is stored in ______________ array. View:-24747
Question Posted on 20 Feb 2019

Jest records all calls that have been made during mock function and it is stored in ______________ array.

ADS Posted In : Frameworks | Jest

Snapshot tests are a useful tool whenever you want to make sure your UI does not change unexpectedly. View:-18440
Question Posted on 20 Feb 2019

Snapshot tests are a useful tool whenever you want to make sure your UI does not change unexpectedly.
(1)....

ADS Posted In : Frameworks | Jest

Jest will wait until the ______________ callback is called before finishing the test. View:-19824
Question Posted on 20 Feb 2019

Jest will wait until the ______________ callback is called before finishing the test.
(1)finish
(2)do....

ADS Posted In : Frameworks | Jest

mockRestore() removes the mock and restores the initial implementation View:-19725
Question Posted on 18 Feb 2019

mockRestore() removes the mock and restores the initial implementation.
(1)False
(2)True

Ans....

ADS Posted In : Frameworks | Jest

The matcher toContain is used _________. View:-20296
Question Posted on 18 Feb 2019

The matcher toContain is used _________.
(1)to check an object is present in a list
(2)To check if a ....

ADS Posted In : Frameworks | Jest

Function's actual implementations can be mocked in test using ________ View:-33
Question Posted on 18 Feb 2019

Function's actual implementations can be mocked in test using ____________.
(1)mockImplementation(fn)

ADS Posted In : Frameworks | Jest

Snapshot Testing is not supported in Jest. View:-16096
Question Posted on 18 Feb 2019

Snapshot Testing is not supported in Jest.
(1)False
(2)True

Answer:-(1)False....

ADS Posted In : Frameworks | Jest

_____ returns the value only once when mock function is called. View:-17951
Question Posted on 18 Feb 2019

______________ returns the value only once when mock function is called.
(1)None of the options
(2)mo....

ADS Posted In : Frameworks | Jest

Code coverage tests that how much code is covered under tests. View:-13991
Question Posted on 18 Feb 2019

Code coverage tests that how much code is covered under tests.
(1)True
(2)False

Answer:-(1)T....

ADS Posted In : Frameworks | Jest

______________ resets all information stored in the mockFn.mock.calls and mockFn.mock.instances arrays. View:-16355
Question Posted on 27 Feb 2019

______________ resets all information stored in the mockFn.mock.calls and mockFn.mock.instances arrays.
(....

ADS Posted In : Frameworks | Jest

When you execute ______________ Code, it will move on to another task before it finishes. View:-15533
Question Posted on 27 Feb 2019

When you execute ______________ Code, it will move on to another task before it finishes.
(1)Synchronous ....

ADS Posted In : Frameworks | Jest

Jest is maintained by ______________ . View:-16280
Question Posted on 17 Feb 2019

Jest is maintained by ______________ .
(1)Google
(2)Facebook
(3)Microsoft
(4)apache

....

ADS Posted In : Frameworks | Jest

Jest is a JavaScript unit testing framework. View:-14827
Question Posted on 17 Feb 2019

Jest is a JavaScript unit testing framework.
(1)True
(2)False

Answer:-(1)True....

ADS Posted In : Frameworks | Jest

Jest works well with other testing libraries like ______________. View:-17348
Question Posted on 17 Feb 2019

Jest works well with other testing libraries like ______________.
(1)Enzyme
(2)Chai
(3)all the op....

ADS Posted In : Frameworks | Jest

Jest is used to test _____________. View:-17157
Question Posted on 17 Feb 2019

Jest is used to test _____________.
(1)Java
(2)Python
(3)JavaScript
(4)Ruby

Answer:-....

ADS Posted In : Frameworks | Jest

______________ matcher matches only undefined. View:-15528
Question Posted on 14 Feb 2019

______________ matcher matches only undefined.
(1)toBeDefined
(2)toBeTruthy
(3)toBeUndefined
....

ADS Posted In : Frameworks | Jest

______________ recursively checks every field of an object or array. View:-18473
Question Posted on 14 Feb 2019

______________ recursively checks every field of an object or array.
(1)toMatch
(2)toBe
(3)toBeEq....

ADS Posted In : Frameworks | Jest

.mock is a property of mock function, the place where all information about how the function has been called is kept. View:-19560
Question Posted on 27 Feb 2019

.mock is a property of mock function, the place where all information about how the function has been called ....

ADS Posted In : Frameworks | Jest

If you expect a promise to be rejected, use the ______________ matcher. If the promise is fulfilled, the test will automatically fail. View:-18072
Question Posted on 27 Feb 2019

If you expect a promise to be rejected, use the ______________ matcher. If the promise is fulfilled, the test....

ADS Posted In : Frameworks | Jest

For Code Coverage Support Jest requires some additional setup and libr View:-18498
Question Posted on 18 Feb 2019

For Code Coverage Support Jest requires some additional setup and libraries .
(1)False
(2)True
<....

ADS Posted In : Frameworks | Jest

How to run your test in terminal? View:-12720
Question Posted on 18 Feb 2019

How to run your test in terminal?
(1)npm test
(2)all the options
(3)npm run test
(4)npm t

ADS Posted In : Frameworks | Jest

How to install Jest using yarn? View:-11957
Question Posted on 18 Feb 2019

How to install Jest using yarn?
(1)yarn install –dev jest
(2)yarn add --dev jest
(3)yarn install ....

ADS Posted In : Frameworks | Jest

mockRestore() works only when mock was created with ______________. View:-17221
Question Posted on 18 Feb 2019

mockRestore() works only when mock was created with ______________.
(1)jest.fn()
(2)jest.spyFn()
....

ADS Posted In : Frameworks | Jest

The Asynchronous code will move on to another task before it finishes. View:-21910
Question Posted on 18 Feb 2019

The Asynchronous code will move on to another task before it finishes.
(1)False
(2)True

Answ....

ADS Posted In : Frameworks | Jest

What is the command to install Jest and the babel-jest? View:-17047
Question Posted on 18 Feb 2019

What is the command to install Jest and the babel-jest?
(1)$ npm install --save-dev jest babel-jest
(....

ADS Posted In : Frameworks | Jest

Jest supports _____for Isolating functionality into small testable View:-22739
Question Posted on 18 Feb 2019

Jest supports ______________ for Isolating functionality into small, testable units under test.
(1)Matche....

ADS Posted In : Frameworks | Jest

To create a mock function, we use ***jest.fn()***. View:-15046
Question Posted on 18 Feb 2019

To create a mock function, we use ***jest.fn()***.
(1)True
(2)False

Answer:-(1)True....

ADS Posted In : Frameworks | Jest

The below test will pass. View:-20177
Question Posted on 18 Feb 2019

The below test will pass.
const value = 0.1 + 0.2;
expect(value).toBe(0.3);
(1)True
(2)False ....

ADS Posted In : Frameworks | Jest

The number can be compared using __________. View:-21551
Question Posted on 18 Feb 2019

The number can be compared using __________.
(1)toBeGreaterThanOrEqual
(2)All the options
(3)toBe....

ADS Posted In : Frameworks | Jest

1 2

:) Categoriese

:) Most Visited Questions

Deep Learning Questions Answers
Below are the different Deep Leaning Questions and answer a More...

What is Gulpjs and some multiple choice questions on Gulp
Gulpjs is an open source whihc helps in building Javascript More...

Derived relationships in Association Rule Mining are represented in the form of __________.
Derived relationships in Association Rule Mining are repres More...

Continuous Integration Questions Answers
Below are the 20 odd questions for CI or Continuous Integra More...

Microservices Architecture Questions Answers
Below are the different questions on Microservices Architec More...

Top Searches:asp net questions vb net questions sql query uddl questions class javascript Questions sharepoint interview questions and concept silverlight questions and concept wcf questions beans general knowledge ajax questions

PHP | Biztalk | Testing | SAP | HR |

Privacy policy | Terms and Conditions | Blog

If the copyright of any wallpaper or content or photo belong to you email us we will remove that(info@crackyourinterview.com or crackyourinterview2018@gmail.com)