What does the operator

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 = 10; x -= 2; x *= 3;?

A). 24

B). 30

C). 36

D). 12

What does the typeof operator return for an array in JavaScript?

A). 'array'

B). 'object'

C). 'null'

D). 'undefined'

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 is the purpose of the % operator in JavaScript?

A). Exponentiation

B). Division

C). Modulus

D). Concatenation

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 will be the result of 10 + '5' in JavaScript?

A). 15

B). 105

C). NaN

D). Error

What does the unary operator + do to a string in JavaScript?

A). Concatenates it

B). Ignores it

C). Converts it to a number

D). Throws an error

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 '7' - 3 in JavaScript?

A). 4

B). '4'

C). NaN

D). Error