Ternary operator (PowerShell 7+) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to use the ternary operator to assign $result as 'Yes' if $value is greater than 10, otherwise 'No'.

PowerShell

$result = ($value -gt 10) [1] 'Yes' : 'No'

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

A?

B??

C:

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using '??' which is the null-coalescing operator, not ternary.

Using ':' alone without '?' to start the ternary.

Using '||' which is a logical OR operator.

The ternary operator in PowerShell 7+ uses the syntax: condition ? true_value : false_value. Here, the '?' is the correct operator to start the ternary expression.

2fill in blank

medium

Complete the code to assign $status as 'Adult' if $age is 18 or more, else 'Minor' using the ternary operator.

PowerShell

$status = ($age -ge 18) [1] 'Adult' : 'Minor'

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

A??

B:

C?

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using '??' which is for null coalescing, not ternary.

Using ':' instead of '?'.

Using '&&' which is logical AND.

The ternary operator uses '?' after the condition to choose between two values. Here, '? ' is needed after the condition.

3fill in blank

hard

Fix the error in the ternary expression to correctly assign $output as 'Even' if $num is divisible by 2, else 'Odd'.

PowerShell

$output = ($num % 2 -eq 0) [1] 'Even' : 'Odd'

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

A&&

B:

C??

D?

Attempts:

3 left

💡 Hint

Common Mistakes

Using ':' instead of '?' after the condition.

Using '??' which is null coalescing.

Using '&&' which is logical AND.

The ternary operator requires '?' after the condition to separate it from the true value. ':' separates true and false values.

4fill in blank

hard

Complete the code to create a ternary expression that assigns $message as 'Success' if $code equals 200, else 'Error'.

PowerShell

$message = ($code -eq 200) [1] 'Success' : 'Error'

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

A?

B:

C??

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping '?' and ':'.

Using '??' or '&&' instead of '?' or ':'.

The ternary operator syntax is: condition ? true_value : false_value. '?' starts the ternary, ':' separates true and false parts.

5fill in blank

hard

Fill both blanks to create a nested ternary expression that assigns $result as 'Positive', 'Negative', or 'Zero' based on $num.

PowerShell

$result = ($num -gt 0) [1] 'Positive' : (($num -lt 0) [2] 'Negative' : 'Zero')

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

A?

B:

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing ':' and '?' in nested ternaries.

Missing parentheses around nested ternary.

Nested ternary uses '?' and ':' repeatedly. First '?' after first condition, ':' before nested ternary, then '?' for nested condition.