Salesforce Javascript-Developer-I Quiz 1 Topic 3 Questions 1-5

Question: 1

Refer to the code below:

q1_Javascript-Developer-I

What is display when the cod executes?

AReferenceError: b is not defined

BA

CUndefined

Dnull

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Question: 2

Refer to the code below:

q2_Javascript-Developer-I

Which statement allows a developer to cancel the scheduled timed function?

AremoveTimeout (timeFunction) ;

BremoveTimeout (timerId) ;

CClearTimeout (timerId) ;

DClearTimeout (timeFunction);

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Question: 3

Refer to the code below:

Let inArray -- [ [1, 2] , [3, 4, 5] ];

Which two statements result in the array [1, 2, 3, 4, 5 ]?

A[ ] . concat. Apply ( [ ], inArray) ;

B[ ] . concat. ( ... inArray) ;

C[ ] . concat. Apply (inArray, [ ] );

D[ ]. Concat ( [...InArray] );

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Question: 4

A developer has a server running with Node.js. the command to start the web server is node server.js. the server started having latency issues. Instead of a one second turnaround for web requests, the developer now sees a five second turnaround.

Which command can the web developer run to see what the module is doing during the latency period?

ADEBUO=http, https node server,js

BNODE_DEBUO=http, https node server,js

CDEBUO=true node server,js

DNODE_DEBUO=true node server,js

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Question: 5

Refer to the code below:

Async funct on functionUnderTest(isOK) {

If (isOK) return 'OK' ;

Throw new Error('not OK');

)

Which assertion accuretely tests the above code?

AConsole.assert (await functionUnderTest(true), ' OK ')

BConsole.assert (await functionUnderTest(true), ' not OK ')

CConsole.assert (await functionUnderTest(true), ' not OK ')

DConsole.assert (await functionUnderTest(true), 'OK')

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Salesforce Javascript-Developer-I Quiz:1 Topic:3 Questions:1-5