What will be the value of b after let b = null; b ??= 'default';?

What does the += operator do?

A). Adds and assigns

B). Subtracts and assigns

C). Multiplies and assigns

D). Divides and assigns

What does let e = 6; e <<= 1; evaluate to?

A). 3

B). 12

C). 6

D). 7

What does let a = 10; a >>= 2; evaluate to?

A). 2

B). 4

C). 10

D). 5

What will be the value of a after let a = 5; a /= 2;?

A). 2

B). 5

C). 10

D). 0

How do you write an assignment statement to decrement a by 1 in JavaScript?

A). a =- 1;

B). a -= 1;

C). a == -1;

D). a = 1;

How does the ^= operator work in JavaScript?

A). Performs a logical XOR

B). Performs a bitwise XOR

C). Performs a logical AND

D). Performs a bitwise AND

Which assignment operator is used to perform multiplication and assignment in one step?

A). =*

B). *=

C). **=

D). //=

What does let a = 2; a **= 3; evaluate to?

A). 8

B). 6

C). 5

D). 2

Which of the following operators is used to perform a logical AND assignment?

A). &&

B). &&=

C). &=

D). and=

How do you write an assignment statement to increment a by 3 in JavaScript?

A). a += 3;

B). a = 3;

C). a == 3;

D). a + 3;