A developer writes the code below to return a message to a user attempting to register a new username. If the username is available, a variable named nag is declared and assigned a value on line 03.

What is the value of msg when getAvailableabilityMessage (“newUserName”) is executed and get Availability (“newUserName”) returns true?

A. "msg is not defined"

B. "newUserName"

C. "User-name available"

D. undefined

Given the expressions var1 and var2, what are two valid ways to return the concatenation of the two expressions and ensure it is string? Choose 2 answers

A. var1 + var2

B. var1.toString ( ) var2.toString ( )

C. String (var1) .concat (var2)

D. string.concat (var1 +var2)

Considering the implications of 'use strict' on line 04, which three statements describe the execution of the code?
Choose 3 answers

A. z is equal to 3.14.

B. 'use strict' is hoisted, so it has an effect on all lines.

C. 'use strict' has an effect only on line 05.

D. 'use strict' has an effect between line 04 and the end of the file.

E. Line 05 throws an error.

Given t he HTML below:

Which statement adds the priority-account CSS class to the Universal Containers row?

A. document. querySelector (#row-uc'). classes-push('priority-account');

B. document. getElementByid('row-uc').addClass('priority-account*);

C. document. querySelectorAll('#row-uc') -classList.add("priority-accour');

D. document. queryselector('#row-uc').ClassList.add('priority-account');

Refer to the code below:
Async funct on functionUnderTest(isOK) {
If (isOK) return ‘OK’ ;
Throw new Error(‘not OK’);Which assertion accurately tests the above code?

A. Console.assert (await functionUnderTest(true), ‘ OK ’)

B. Console.assert (await functionUnderTest(true), ‘ not OK ’)

C. Console.assert (await functionUnderTest(true), ‘ not OK ’)

D. Console.assert (await functionUnderTest(true), ‘OK’)