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;
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;
What does let a = 10; a >>= 2; evaluate to?
A). 2
B). 4
C). 10
D). 5
What does the ??= operator do?
A). Logical AND assignment
B). Logical OR assignment
C). Nullish coalescing assignment
D). Bitwise AND assignment
What is the value of let a = 5; a *= 2 + 3;?
A). 25
B). 10
C). 15
D). 5
What does the += operator do?
A). Adds and assigns
B). Subtracts and assigns
C). Multiplies and assigns
D). Divides and assigns
Which assignment operator is used to perform multiplication and assignment in one step?
A). =*
B). *=
C). **=
D). //=
What will be the value of b after let b = null; b ??= 'default';?
A). null
B). 'default'
C). undefined
D). NaN
What will be the value of x after let x = 5; x -= 2;?
A). 7
B). 2
C). 3
D). 5
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