Function definition in PowerShell - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a function named 'Greet' that prints 'Hello'.

PowerShell

function [1] {
    Write-Output "Hello"
}

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

APrintHello

BSayHello

CGreet

DHelloFunction

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different function name than 'Greet'.

Missing the function keyword.

The function keyword is followed by the function name. Here, the function is named 'Greet'.

2fill in blank

medium

Complete the code to define a function named 'Add' that takes two parameters.

PowerShell

function Add([1]) {
    $sum = $a + $b
    Write-Output $sum
}

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

A$a, $b

B$x, $y

C$num1, $num2

D$first, $second

Attempts:

3 left

💡 Hint

Common Mistakes

Using parameter names different from those used inside the function.

Forgetting to separate parameters with commas.

The function parameters are listed inside parentheses separated by commas. Here, '$a' and '$b' are used in the function body, so they must be the parameters.

3fill in blank

hard

Fix the error in the function definition to correctly define a function named 'Multiply' that returns the product of two numbers.

PowerShell

function Multiply {
    param([1])
    return $x * $y
}

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

A$a, $b

B$num1, $num2

C$first, $second

D$x, $y

Attempts:

3 left

💡 Hint

Common Mistakes

Using parameter names that don't match the variables used inside the function.

Missing the param block.

The param block defines the parameters. Since the function uses $x and $y inside, the param block must declare $x and $y.

4fill in blank

hard

Fill both blanks to define a function 'Square' that takes one parameter and returns its square.

PowerShell

function Square {
    param([1])
    return [2] * [1]
}

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

A$num

C$value

D$input

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names in param and return statement.

Forgetting to multiply the parameter by itself.

The parameter is named '$num'. The return statement multiplies '$num' by itself to get the square.

5fill in blank

hard

Fill all three blanks to define a function 'GreetPerson' that takes a name and prints a greeting.

PowerShell

function GreetPerson {
    param([1])
    $message = "Hello, [2]!"
    Write-Output [3]
}

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

A$name

C$message

D$person

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names inconsistently.

Forgetting to print the message variable.

The parameter is '$name'. The message uses '$name' to create the greeting. The output prints the '$message'.