Q
How do you write an assignment statement to decrement a by 1 in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The -= operator decrements a by the specified value (1 in this case).
Related Questions on Average

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

What will be the value of d after let d = true; d &&= false;?

A). 1

B). 0

C). NaN

D). undefined

What does let a = 10; a >>= 2; evaluate to?

A). 2

B). 4

C). 10

D). 5

What will be the value of a after let a = 5; a /= 2;?

A). 2

B). 5

C). 10

D). 0

Which operator would you use to shift bits to the right and assign the result?

A). >>>=

B). >>=

C). <<=

D). &=

What does the += operator do?

A). Adds and assigns

B). Subtracts and assigns

C). Multiplies and assigns

D). Divides and assigns

What does the ??= operator do?

A). Logical AND assignment

B). Logical OR assignment

C). Nullish coalescing assignment

D). Bitwise AND assignment

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 will be the value of x after let x = 5; x -= 2;?

A). 7

B). 2

C). 3

D). 5