Salesforce Javascript-Developer-I Quiz 5 Topic 2 Questions 21-25

Question: 1

Refer to the following code that imports a module named Utills,

Which two implementations of Utill, je export foo and bar such that the code above runs without error?

Choose 2 answers

A//FooUtill.js and barUtils, js exist
Import (foo) from ,/Path/footUtils.js,:
Export (foo, bar)

BConst foo = () => ( return 'foo ' ; )
Const bar => ( return 'bar' ; )
Export (foo, bar)

CExport default class (
Foo ( ) ( return 'foo ,; )
Bar ( ) ( return ;bar ; )

DConst foo = ( ) => ( return 'foo; ; )
Const bar => => { return 'bar ';}
Export default foo, bar;

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Question: 2

A developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality.

The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.

Given the code and the information the developer has, which code logs an error at boot time with an event?

A)

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B)

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C)

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D)

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AOption A

BOption B

COption C

DOption D

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Question: 3

Refer to the following code:

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What is returned by the function call on line 13?

AUndefined

BLine 13 throws an error.

CUndefined value.

DNull value

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Question: 4

Which code statement below correctly persists an object in localStorage?

Aconst setLocalstorage = (storageKey , jsobject) => (
windows. LocalStorage,setitem(storagekey. jSON,string
)

Bconst setLocalstorage = (jsobject) =>
Windows.localstorage.connectobject(jsObject);
C.
Const setLocalstorage = (jsobject ) => (
Window .localstorage .setitem (jsobject) ;
D.
Const setlocalstorage = (storagekey, jsObject) => (
Window. Localstorage.persist (storagekey, jsObject);
)

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Question: 5

The developer wants to test the array shown:

Const arr = Array (5) . fill (0);

Which two test are the most accurate for this array? Choose 2 answers

AConsole,assert(arr.length === 5) ;

BArr. forEach (elem => console .assert (elem === 0) );

CConsole,assert(arr(0) === 0 $$ arr (arr .longth ) === 0) ;

DConsole. Assert (arr. Length > 0) ;

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Salesforce Javascript-Developer-I Quiz:5 Topic:2 Questions:21-25