Free Access Salesforce.Javascript-Developer-I.v2022-05-04.q62 Practice Test (Page 6)

Question 21

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?

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

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

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

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

Question 22

Refer of the string below:
Const str = 'sa;esforce'=;
Which two statement result in the word 'Sale'?
Choose 2 answers

A.str, substr(1,5) ;

B.str, substring (0,5) ;

C.str, substr(0,5) ;

D.str, substring(1,5) ;

Question 23

Which two code snippets show working examples of a recursive function?
Choose 2 answers

A.Const sumToTen = numVar => {
If (numVar < 0)
Return;
return sumToTen(numVar + 1)};

B.Const factorial =numVar => {
If (numVar < 0) return;
If ( numVar === 0 ) return 1;
return numVar * factorial ( numVar - 1 );
};

C.Let countingDown = function(startNumber) {
If ( startNumber >0) {
console.log(startNumber) ;
return countingDown(startNUmber);
} else {
return startNumber;
}};

D.Function factorial ( numVar ) {
If (numVar < 0) return;
If ( numVar === 0 ) return 1;
return numVar -1;

Question 24

A developer uses a parsed JSON string to work with user information as in the block below:
01 const userInformation ={
02 " id " : "user-01",
03 "email" : "[email protected]",
04 "age" : 25
Which two options access the email attribute in the object?
Choose 2 answers

A.userInformation.get("email")

B.userInformation.email

C.userInformation("email")

D.userInformation(email)

Question 25

GIven a value, which three options can a developer use to detect if the value is NaN?
Choose 3 answers !

A.Number.isNaN(value)

B.value === Number.NaN

C.value ! == value

D.value == NaN

E.Object.is(value, NaN)

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Question 21

Question 22

Question 23

Question 24

Question 25

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