Q
What will be the value of x after executing the code: let x = 10; x -= 2; x *= 3;?

Answer & Solution

Answer: Option A
Solution:
<div>The code x -= 2 is equivalent to x = x - 2, which results in x = 10 - 2 = 8. Then, x *= 3 is equivalent to x = x * 3, which results in x = 8 * 3 = 24.</div>
Related Questions on Average

What will be the output of '2' + 2 + 2 in JavaScript?

A). '222'

B). 6

C). 4

D). Error

What will be the output of '5' + 2 - 1 in JavaScript?

A). '52'

B). 6

C). '4'

D). Error

What is the value of x after executing the code: let x = 5; x *= 2 + 3;?

A). 10

B). 25

C). 13

D). 15

What does the operator === do in JavaScript?

A). Checks for equality without type conversion

B). Assigns a value

C). Performs a strict comparison

D). Concatenates strings

What does the operator

A).

B). do in JavaScript?

C). Logical AND

D). Logical OR

What will be the output of 10 + '2' - 1 in JavaScript?

A). '101'

B). '10'

C). NaN

D). Error

What will be the result of 3 * 'A' in JavaScript?

A). Error

B). NaN

C). 0

D). 3

What will be the value of x after executing the code: let x = 5; x += '2';?

A). 7

B). '72'

C). 52

D). NaN

What will be the result of '10' + 10 in JavaScript?

A). '1010'

B). 20

C). NaN

D). Error

What is the purpose of the % operator in JavaScript?

A). Exponentiation

B). Division

C). Modulus

D). Concatenation