If-elseif-else statements in PowerShell - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a number is positive.

PowerShell

if ($number [1] 0) { Write-Output "Positive" }

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

A-gt

B-ne

C-eq

D-lt

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-lt' which means less than, so it would check for negative numbers.

Using '-eq' which checks for equality, not greater than.

The operator '-gt' means 'greater than', so it checks if $number is greater than 0.

2fill in blank

medium

Complete the code to check if a number is zero.

PowerShell

if ($number -gt 0) { Write-Output "Positive" } elseif ($number [1] 0) { Write-Output "Zero" }

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

A-ne

B-lt

C-ge

D-eq

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-lt' or '-ge' which check less than or greater or equal, not equality.

Using '-ne' which means not equal, the opposite of what is needed.

The operator '-eq' means 'equals', so it checks if $number is exactly zero.

3fill in blank

hard

Fix the error in the else statement syntax.

PowerShell

if ($score -ge 90) { Write-Output "A" } elseif ($score -ge 80) { Write-Output "B" } else[1]Write-Output "F" }

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

Aelse {

Bthen {

C {

Delseif {

Attempts:

3 left

💡 Hint

Common Mistakes

Adding 'then' after else, which is not valid in PowerShell.

Writing 'elseif' instead of 'else' for the final block.

In PowerShell, 'else' must be followed by a space and then a block starting with '{'. No extra keywords like 'then' are used.

4fill in blank

hard

Fill both blanks to complete the if-elseif structure checking temperature.

PowerShell

if ($temp [1] 30) { Write-Output "Hot" } elseif ($temp [2] 15) { Write-Output "Warm" } else { Write-Output "Cold" }

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

A-gt

B-lt

C-ge

D-le

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-ge' or '-le' which include equality and may change logic.

Swapping the operators and confusing hot and warm conditions.

The first condition checks if temperature is greater than 30 (hot). The second checks if temperature is less than 15 (cold). Otherwise, it's warm.

5fill in blank

hard

Fill all three blanks to create a dictionary with keys as uppercase words and values as their lengths if length is greater than 3.

PowerShell

foreach ($word in $words) { if (($word.Length [1] 3) [2] $true)) { $dict[[3]] = $word.Length } }

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

A-gt

B-and

C$word.ToUpper()

D-lt

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-lt' instead of '-gt' which reverses the condition.

Using '-or' instead of '-and' which changes logic.

Not converting the word to uppercase for the dictionary key.

The condition checks if word length is greater than 3 and uses '-and' to combine conditions if needed. The dictionary key is the uppercase version of the word.