Answer & Solution
Answer: Option A
Solution:
The += operator adds the right operand to the left operand and assigns the result to the left operand.
Q
What does the += operator do?
Related Questions on Average
Which operator would you use to shift bits to the right and assign the result?
A). >>>=
B). >>=
C). <<=
D). &=
What will be the value of c after `let c = 5; c
A). = 3;`?
B). 1
C). 3
D). 7
Which of the following operators is used to perform a logical AND assignment?
A). &&
B). &&=
C). &=
D). and=
What does the ??= operator do?
A). Logical AND assignment
B). Logical OR assignment
C). Nullish coalescing assignment
D). Bitwise AND assignment
What is the result of let a = 5; a %= 2;?
A). 1
B). 2
C). 0
D). 5
What will be the value of d after let d = true; d &&= false;?
A). 1
B). 0
C). NaN
D). undefined
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 does let a = 2; a **= 3; evaluate to?
A). 8
B). 6
C). 5
D). 2
What does let a = 10; a >>= 2; evaluate to?
A). 2
B). 4
C). 10
D). 5