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: Dec 18, 2025

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Question 1

Analyze the following code:let msg "Hello World";console.log(msg);What exception will be thrown as a result of its execution attempt?

A : TypeError

B : SyntaxError

C : ReferenceError

D : RangeError

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

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 4

Most errors in JavaScript code that the interpreter encounterswhile the program is running cause exceptions to be thrown.What do unhandled exception do?

A : The interpreter ignores unhandled exceptions,the program continues to execute,and no information is received.

B : An error message appears in the consoleand the execution of the program is aborted.

C : An error message appears in the consoleand program execution continues.

D : The interpreter removes the erroneous piece of code,replaces it with corrected one,and continues the program execution.

Answer: B

Question 5

The msg variable contains a String type value.Information about the number of characters of this string can be obtained using:

A : msg.length

B : msg.length()

C : msg.charsAt()

D : msg.chars

Answer: A

Page: 1 / 53

Total 263 Questions | Updated On: Dec 18, 2025

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