Salesforce Javascript-Developer-I Quiz 22 Topic 7 Questions 106-110

Question: 1

Which statement accurately describes the behavior of the async /swait keywords?

AThe associated class contains some asynchronous functions.

BThe associated function will always return a promise.

CThe associated function can only be called via asynchronous methods.

DThe associated function sometimes returns a promise.

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Question: 2

A developer is debugging a web server that uses Node.js. The server hits a runtime error every third request to an important endpoint on the web server.

The developer added a break point to the start script, that is at index, js at the root of the server's source code. The developer wants to make use of Chrome DevTools to debug.

Which command can be run to access DevTools and make sure the breakpoint is hit?

ANode -I index , js

BNode --inspect --brk index , js

CNode inspect index , js

DNode -- inspect index ,js

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Question: 3

Refer to the code below:

q3_Javascript-Developer-I

Which assertion accurately tests the above code?

AConsole, assert ( await functionalUnderTest (true) , 'ok

BConsole, assert ( await functionalUnderTest (true) , 'not ok) )

CConsole, assert ( await functionalUnderTest (true) , 'not ok' )

DConsole, assert (functionalUnderTest (true) , 'ok')

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Question: 4

Considering type coercion, What does the following expression evaluate to?

True + ) + '100 ' + null

A104

B4100

C'3100null'

D'4100null'

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Question: 5

Given a value, which three options can a developer use to detect of the value is NaN?

Choose 3 answers

AValue == NaN

BObject , is ( value, NaN)

CValue == Number, NaN

DValue I== value

ENumber , isNaN(value)

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Salesforce Javascript-Developer-I Quiz:22 Topic:7 Questions:106-110