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

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 result of `let x = 10; x

A).

B). = 5;`?

C). 10

D). 5

What does let a = 2; a **= 3; evaluate to?

A). 8

B). 6

C). 5

D). 2

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 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 does the ??= operator do?

A). Logical AND assignment

B). Logical OR assignment

C). Nullish coalescing assignment

D). Bitwise AND assignment

What does the += operator do?

A). Adds and assigns

B). Subtracts and assigns

C). Multiplies and assigns

D). Divides and assigns

What will be the value of c after `let c = 5; c

A). = 3;`?

B). 1

C). 3

D). 7

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

A). 2

B). 4

C). 10

D). 5