Javascript MCQ Questions and Answers

Question No. - 1 Report Bug

What is the output of the following code let a = 2, b = 3, c = 4; a = b = c; console.log(a, b, c);
निम्नलिखित कोड का परिणाम क्या है let a = 2, b = 3, c = 4; a = b = c; console.log(a, b, c);

243

Incorrect

444

correct

2 2 2

Incorrect

432

Incorrect

Question No. - 2 Report Bug

What is the output of the following code let result = 10 / 2 * 3; console.log(result);
निम्नलिखित कोड का परिणाम क्या है let result = 10 / 2 * 3; console.log(result);

correct

1.5

Incorrect

Error

Incorrect

Question No. - 3 Report Bug

What is the output of the following code let a = 10; let b = a--; console.log(a, b);
निम्नलिखित कोड का परिणाम क्या है let a = 10; let b = a--; console.log(a, b);

10 10

Incorrect

9 10

correct

9 9

Incorrect

10 9

Incorrect

Question No. - 4 Report Bug

What is the output of the following code let a = 10; let b = "10"; console.log(a == b);
निम्नलिखित कोड का परिणाम क्या है let a = 10; let b = "10"; console.log(a == b);

true

correct

false

Incorrect

undefined

Incorrect

Error

Incorrect

Question No. - 5 Report Bug

How many times will the following loop execute How many times will the following loop execute?

for (let i = 0; i < 5; i++) 
{	
 console.log(i);	
}

Incorrect

correct

Incorrect

Infinite

Incorrect

Question No. - 6 Report Bug

How can you skip the current iteration of a loop
आप किसी लूप की वर्तमान पुनरावृत्ति को कैसे छोड़ सकते हैं

Use break;

Incorrect

Use continue;

correct

Use skip;

Incorrect

Use return;

Incorrect

Question No. - 7 Report Bug

What is the associativity of the assignment operator (=)
असाइनमेंट ऑपरेटर की संबद्धता क्या है (=)

Left-to-right

Incorrect

Right-to-left

correct

Top-to-bottom

Incorrect

Undefined

Incorrect