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Question 1

Refer to the expression below:

Let x = ('1' + 2) == (6 * 2);

How should this expression be modified to ensure that evaluates to false?

Options :

A : Let x = ('1' + ' 2') == ( 6 * 2);

B : Let x = ('1' + 2) == ( 6 * 2);

C : Let x = (1 + 2) == ( '6' / 2);

D : Let x = (1 + 2 ) == ( 6 / 2);

Answer: B

Question 2

Given the JavaScript below:

Which code should replace the placeholder comment on line 05 to highlight accounts that match the search string'

Options :

A : 'yellow' : null

B : null : 'yellow'

C : 'none1 : 'yellow'

D : 'yellow : 'none'

Answer: D

Question 3

Which javascript methods can be used to serialize an object into a string and deserialize

a JSON string into an object, respectively?

Options :

A : JSON.stringify and JSON.parse

B : JSON.serialize and JSON.deserialize

C : JSON.encode and JSON.decode

D : JSON.parse and JSON.deserialize

Answer: A

Question 4

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

True + '13' + NaN

Options :

A : ' 113Nan '

B : 14

C : ' true13 '

D : ' true13NaN '

Answer: D

Question 5

A developer wrote the following code to test a sum3 function that takes in an array of numbers and returns the sum of the first three numbers in the array, and the test passes.

A different developer made changes to the behavior of sum3 to instead sum only the first two numbers present in the array.

Which two results occur when running this test on the updated sum3 function?

Choose 2 answers

Options :

A : The line 05 assertion passes.

B : The line 02 assertion passes.

C : The line 02 assertion fails.

D : The line 05 assertion fails.

Answer: B,D