Free JS Institute JSA-41-01 Exam Questions

Become JS Institute Certified with updated JSA-41-01 exam questions and correct answers

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Total 160 Questions | Updated On: Oct 28, 2025

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Question 1

What line of code should be inserted into the Product class definition to add a property price to the class?class Product { constructor(name) { this.name = name; // insert code here }}

A : price: 0;

B : this.price = 0;

C : var price = 0;

D : let price = 0;

Answer: B

Question 2

What is the correct way to define an object "person" with properties "firstName", "lastName", and "age"?

A : const person = {firstName: 'Jane', lastName: 'Doe', age: 30};

B : const person = new Object('firstName' = 'Jane', 'lastName' = 'Doe', 'age' = 30);

C : const person = {'firstName': 'Jane', 'lastName': 'Doe', 'age': 30};

D : const person('firstName' = 'Jane', 'lastName' = 'Doe', 'age' = 30);

Answer: A

Question 3

In the following code snippet, what line of code should be inserted to declare a method named showInfo that outputs the string "Hi" to the console?class A { // insert code here}let a = new A();console.log(a.showInfo());

A : let showInfo = function() { console.log("Hi"); }

B : showInfo = function() { return "Hi"; }

C : showInfo() { return "Hi"; }

D : function showInfo() { return "Hi"; }

Answer: B

Question 4

What will be the value of result after the following code is executed?var arr = [1, 2, 3, 4, 5];var result = arr.splice(2, 2);

A : [1, 2, 3, 4, 5]

B : [1, 2, 5]

C : [3, 4]

D : [1, 2, 3, 4, 5, 3, 4]

Answer: C

Question 5

What will be the value of result after the following code is executed?var str = "The quick brown fox";var result = str.replace(/[aeiou]/gi, '*');

A : "Th* qck brwn fx"

B : "Th* quck brwn fx"

C : "Th qck brwn fx."

D : Th* q**ck br*wn f*x

Answer: D

Page: 1 / 32

Total 160 Questions | Updated On: Oct 28, 2025

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