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

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 a after let a = 5; a /= 2;?

A). 2

B). 5

C). 10

D). 0

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 is the value of let a = 5; a *= 2 + 3;?

A). 25

B). 10

C). 15

D). 5

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

A). 2

B). 4

C). 10

D). 5

What will be the value of b after let b = null; b ??= 'default';?

A). null

B). 'default'

C). undefined

D). NaN

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

A). = 3;`?

B). 1

C). 3

D). 7

How do you write an assignment statement to increment a by 3 in JavaScript?

A). a += 3;

B). a = 3;

C). a == 3;

D). a + 3;

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

A). 1

B). 0

C). NaN

D). undefined