Free Practice JS Institute JSA-41-01 Exam Questions 2025

Stay ahead with 100% Free JSA - Certified Associate JavaScript Programmer JSA-41-01 Dumps Practice Questions

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Total 160 Questions | Updated On: Apr 11, 2025

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Question 1

What will be the output of the following code?

const a = { x: 1 };

const b = { y: 2 };

const c = { ...a, b, z: 3 };

console.log(c);

A : { x: 1, y: 2, z: 3}

B : { y: 2 }

C : {x: 1, b: { y: 2 }, z: 3}

D : undefined

Answer: C

Question 2

What expression will return true if 1. let shape1 = {x: 10, y: 20} and 1. let shape2 = {x: 10, y: 20} have the same property values?

A : shape1.x == shape2.y

B : (shape1.x == shape2.x) && (shape1.y == shape2.y)

C : shape1 == shape2

D : Object.keys(shape1) === Object.keys(shape2)

Answer: B

Question 3

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 4

What is the output of the following code?

const add = (a, b) => a + b;

const double = n => add(n, n);

console.log(double(3));

A : 6

B : 9

C : 12

D : 15

Answer: A

Question 5

What is the output of the following code snippet?

class Shape{};

class Pyramid extends Shape{};

class SquareBasedPyramid extends Pyramid {};

let shape = new SquareBasedPyramid ();

console.log(`${shapeinstance of Shape} ${shape instance of Pyramid } ${shape instance of SquareBasedPyramid }`)

A : true true true

B : false false true

C : true false true

D : false false false

Answer: A

Page: 1 / 32

Total 160 Questions | Updated On: Apr 11, 2025

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