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
What will be the value of d after let d = true; d &&= false;?
A). 1
B). 0
C). NaN
D). undefined
What will be the value of c after `let c = 5; c
A). = 3;`?
B). 1
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D). 7
How do you write an assignment statement to decrement a by 1 in JavaScript?
A). a =- 1;
B). a -= 1;
C). a == -1;
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Which operator would you use to shift bits to the right and assign the result?
A). >>>=
B). >>=
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Which of the following operators is used to perform a logical AND assignment?
A). &&
B). &&=
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Which assignment operator is used to perform multiplication and assignment in one step?
A). =*
B). *=
C). **=
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What is the result of let a = 5; a %= 2;?
A). 1
B). 2
C). 0
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What does let e = 6; e <<= 1; evaluate to?
A). 3
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C). 6
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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
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A). a += 3;
B). a = 3;
C). a == 3;
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