What will be the value of b after let b = null; b ??= 'default';?
A). null
B). 'default'
C). undefined
D). NaN
What does let a = 2; a **= 3; evaluate to?
A). 8
B). 6
C). 5
D). 2
Which operator would you use to shift bits to the right and assign the result?
A). >>>=
B). >>=
C). <<=
D). &=
How does the &= operator work in JavaScript?
A). Performs a logical AND
B). Performs a bitwise AND
C). Performs a bitwise OR
D). Performs a logical OR
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;
What does the += operator do?
A). Adds and assigns
B). Subtracts and assigns
C). Multiplies and assigns
D). Divides and assigns
What does the ??= operator do?
A). Logical AND assignment
B). Logical OR assignment
C). Nullish coalescing assignment
D). Bitwise AND assignment
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
What will be the value of x after let x = 5; x -= 2;?
A). 7
B). 2
C). 3
D). 5
What does let a = 10; a >>= 2; evaluate to?
A). 2
B). 4
C). 10
D). 5