Free JS Institute JSE-40-01 Exam Questions

Become JS Institute Certified with updated JSE-40-01 exam questions and correct answers

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Total 263 Questions | Updated On: Oct 27, 2025

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Question 1

Analyze the following code:let x = false || true;let y = "true" && "false";let z = false && true;console.log(`${x} ${y} ${z}`);What will appear in the console as a result of its execution?

A : false false false

B : true false false

C : false false true

D : false true true

Answer: B

Question 2

Handling an exception thrown by the interpreter with catch causes:

A : the execution of the program to be automatically aborted,but we can generate our own error message(not necessarily in the console)

B : further executing of the program to depend on the codewe place in the execution handler.

C : the program to continue executing until the last instruction,but we can generate our own error message(not necessarily in the console).

D : nothing to happen, because catch is not used for exception handling.

Answer: B

Question 3

Which of the following loop instructions is intended only to loopthrough all elements of the indicated array?

A : do ... while

B : for ... in

C : for ... of

D : for

Answer: C

Question 4

Which sequence of if ... else statements is incorrect?

A : if ... else if ...

B : if ... else ...

C : if ... else ... else ...

D : if ... else if ... else ...

Answer: C

Question 5

Analyze the following code:let x = 10;function test() { let x = 20;} test();console.log(x);What will be displayed in the console as a result of its execution?

A : 10

B : undefined

C : Nothing will show up.

D : "x"

Answer: A

Page: 1 / 53

Total 263 Questions | Updated On: Oct 27, 2025

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