Answer & Solution
Answer: Option B
Solution:
The -= operator decrements a by the specified value (1 in this case).
Q
How do you write an assignment statement to decrement a by 1 in JavaScript?
Related Questions on Average
What will be the value of x after let x = 5; x -= 2;?
A). 7
B). 2
C). 3
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 a after let a = 5; a /= 2;?
A). 2
B). 5
C). 10
D). 0
Which assignment operator is used to perform multiplication and assignment in one step?
A). =*
B). *=
C). **=
D). //=
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 d after let d = true; d &&= false;?
A). 1
B). 0
C). NaN
D). undefined
What is the value of let a = 5; a *= 2 + 3;?
A). 25
B). 10
C). 15
D). 5
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 will be the value of c after `let c = 5; c
A). = 3;`?
B). 1
C). 3
D). 7
What does the += operator do?
A). Adds and assigns
B). Subtracts and assigns
C). Multiplies and assigns
D). Divides and assigns