Parameters in PowerShell - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a parameter named 'Name'.

PowerShell

param([string]$[1])
Write-Output "Hello, $Name!"

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

Aparam

BNameParam

CName

DInputName

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different name than the variable used in the script.

Forgetting to put the parameter inside the param() block.

The 'param' block defines parameters. Inside it, you list parameter names. Here, 'Name' is the parameter.

2fill in blank

medium

Complete the code to make the parameter 'Age' mandatory.

PowerShell

param(
    [Parameter([1]=$true)]
    [int]$Age
)
Write-Output "Age is $Age"

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

AMandatory

BRequired

CForce

DNeeded

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Required' instead of 'Mandatory'.

Not using the Parameter attribute at all.

The 'Mandatory' attribute makes a parameter required in PowerShell.

3fill in blank

hard

Fix the error in the parameter declaration to accept multiple strings.

PowerShell

param(
    [string[]]$[1]
)
Write-Output "Items: $($Items -join ', ')"

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

AList

BItem

CItemList

DItems

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different parameter name than the variable used in the script.

Forgetting the array type [string[]].

The variable used later is $Items, so the parameter name must be 'Items'.

4fill in blank

hard

Fill both blanks to define a parameter 'Count' with a default value of 5.

PowerShell

param(
    [int]$[1] = [2]
)
Write-Output "Count is $Count"

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

ACount

B10

C5

DNumber

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different parameter name than the variable used.

Setting the wrong default value.

The parameter name is 'Count' and the default value is 5.

5fill in blank

hard

Fill all three blanks to create a parameter 'Verbose' that is a switch and mandatory.

PowerShell

param(
    [Parameter([1]=$true)]
    [[2]]$[3]
)
if ($Verbose) { Write-Output "Verbose mode on" }

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

AMandatory

BSwitch

CVerbose

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using Boolean instead of Switch for flags.

Not making the parameter mandatory when required.

The parameter is mandatory, of type Switch, and named Verbose.