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Javascript-Developer-I Exam Questions

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Javascript-Developer-I Exam Questions

Free Javascript-Developer-I Exam Questions - Salesforce Javascript-Developer-I Exam

Salesforce Javascript-Developer-I Exam

Salesforce Certified JavaScript Developer I

Total Questions: 224

Last Updated : 22-01-2023

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Salesforce Javascript-Developer-I Questions

Q1.

Which two console logs output NaN?

Choose 2 answers | |

Aconsole.log(10 / Number('5) ) ;

Bconsole.log(parseInt ' ('two')) ;

Cconsole.log(10 / 0);

Dconsole.loeg(10 / 'five');

Q2.

A developer wants to use a module named universalContainersLib and then call functions from it.

How should a developer import every function from the module and then call the functions foo and bar?

Aimport * from '/path/universalContainersLib.js';
universalContainersLib. foo ()7
universalContainersLib.bar ();

Bimport {foo,bar} from '/path/universalCcontainersLib.js';
foo():
bar()?

Cimport all from '/path/universalContainersLib.js';
universalContainersLib.foo();
universalContainersLib.bar ();

Dimport * as lib from '/path/universalContainersLib.js';
lib.foo();
lib. bar ();

Q3.

Refer to the code below:

Const myFunction = arr => {

Return arr.reduce((result, current) =>{

Return result = current;

}, 10};

}

What is the output of this function when called with an empty array ?

AReturns 0

BThrows an error

CReturns 10

DReturns NaN

Q4.

Which three browser specific APIs are available for developers to persist data between page loads ?

Choose 3 answers

AIIFEs

BindexedDB

CGlobal variables

DCookies

ElocalStorage.

Solutions:

Question: 1 Answer: B, D

Question: 2 Answer: D

Question: 3 Answer: C

Question: 4 Answer: A, B, E

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