Answer & Solution
Answer: Option B
Solution:
The ??= operator assigns 'default' to b because b is initially null.
Q
What will be the value of b after let b = null; b ??= 'default';?
Related Questions on Average
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 is the value of let a = 5; a *= 2 + 3;?
A). 25
B). 10
C). 15
D). 5
What will be the value of a after let a = 5; a /= 2;?
A). 2
B). 5
C). 10
D). 0
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
What does let a = 2; a **= 3; evaluate to?
A). 8
B). 6
C). 5
D). 2
What is the result of let a = 5; a %= 2;?
A). 1
B). 2
C). 0
D). 5
What does the += operator do?
A). Adds and assigns
B). Subtracts and assigns
C). Multiplies and assigns
D). Divides and assigns
What is the result of `let x = 10; x
A).
B). = 5;`?
C). 10
D). 5
What will be the value of x after let x = 5; x -= 2;?
A). 7
B). 2
C). 3
D). 5
What does the ??= operator do?
A). Logical AND assignment
B). Logical OR assignment
C). Nullish coalescing assignment
D). Bitwise AND assignment