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
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 will be the value of x after let x = 5; x -= 2;?
A). 7
B). 2
C). 3
D). 5
What is the result of let a = 5; a %= 2;?
A). 1
B). 2
C). 0
D). 5
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 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 is the result of `let x = 10; x
A).
B). = 5;`?
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
Which assignment operator is used to perform multiplication and assignment in one step?
A). =*
B). *=
C). **=
D). //=