Ternary conditional operator in Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign the larger number to max using the ternary operator.

Swift

let max = [1] b > a ? b : a

Drag options to blanks, or click blank then click option'

A*

B+

C-

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using arithmetic operators instead of assignment.

Forgetting to assign the result to a variable.

The ternary operator returns b if b > a is true, otherwise a. The result is assigned to max using =.

2fill in blank

medium

Complete the code to print "Even" if number is even, otherwise "Odd" using the ternary operator.

Swift

print(number % 2 == 0 ? [1] : "Odd")

Drag options to blanks, or click blank then click option'

A"Odd"

B"Even"

C"Zero"

D"Number"

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the true and false values.

Using incorrect strings.

The ternary operator checks if number % 2 == 0. If true, it prints "Even", else "Odd".

3fill in blank

hard

Fix the error in the ternary expression to correctly assign the smaller value to min.

Swift

let min = [1] y < x ? y : x

Drag options to blanks, or click blank then click option'

A=

B+

C-

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using arithmetic operators instead of assignment.

Omitting the assignment operator.

The assignment operator = is needed to assign the result of the ternary expression to min.

4fill in blank

hard

Fill both blanks to create a ternary expression that assigns "Adult" if age is 18 or more, otherwise "Minor".

Swift

let status = age [1] 18 [2] "Adult" : "Minor"

Drag options to blanks, or click blank then click option'

A>=

B<

C?

D:

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of operators.

Using wrong comparison operators.

The ternary operator syntax is condition ? trueValue : falseValue. Here, age >= 18 is the condition, so ? comes first, then the true value "Adult", then : and the false value "Minor".

5fill in blank

hard

Fill both blanks to create a ternary expression that assigns the absolute value of number to absValue.

Swift

let absValue = number [1] 0 [2] number : -number

Drag options to blanks, or click blank then click option'

A>

B?

C:

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of operators.

Using less than instead of greater than.

The ternary operator syntax is condition ? trueValue : falseValue. Here, the condition is number > 0, so ? comes first, then number if true, then : and -number if false.