Formatting with -f operator in PowerShell - Mini Project: Build & Apply

Formatting with -f operator

📖 Scenario: You are preparing a simple report for your team. You want to display names and scores neatly aligned in columns.

🎯 Goal: Build a PowerShell script that formats names and scores using the -f operator to align the output in columns.

📋 What You'll Learn

Create a hashtable with exact names and scores

Create a format string variable using the -f operator placeholders

Use a loop to format each name and score using the format string

Print the formatted lines to display aligned columns

💡 Why This Matters

🌍 Real World

Formatting output neatly is useful for reports, logs, and console displays where readability matters.

💼 Career

Many automation and scripting jobs require formatting data for clear presentation using PowerShell or similar tools.

1

Create the data hashtable

Create a hashtable called scores with these exact entries: 'Alice' = 85, 'Bob' = 92, 'Charlie' = 78.

PowerShell

# Create the hashtable called scores with the given entries
# Your code here

Need a hint?

Use @{} to create a hashtable and separate entries with semicolons.

2

Create the format string

Create a variable called formatString and set it to the string '{0,-10} {1,5}' which will format the name left-aligned in 10 spaces and the score right-aligned in 5 spaces.

PowerShell

$scores = @{ 'Alice' = 85; 'Bob' = 92; 'Charlie' = 78 }
# Create the formatString variable with '{0,-10} {1,5}'
# Your code here

Need a hint?

The -10 means left-align in 10 spaces, 5 means right-align in 5 spaces.

3

Format each entry using the -f operator

Use a foreach loop with variables $name and $score to iterate over $scores.GetEnumerator(). Inside the loop, create a variable $line that formats $name and $score using $formatString -f $name, $score.

PowerShell

$scores = @{ 'Alice' = 85; 'Bob' = 92; 'Charlie' = 78 }
$formatString = '{0,-10} {1,5}'
# Use foreach loop to format each name and score
# Your code here

Need a hint?

Use $scores.GetEnumerator() to loop through the hashtable entries.

4

Print the formatted lines

Inside the foreach loop, add a line to print the variable $line using Write-Output $line.

PowerShell

$scores = @{ 'Alice' = 85; 'Bob' = 92; 'Charlie' = 78 }
$formatString = '{0,-10} {1,5}'
foreach ($entry in $scores.GetEnumerator()) {
    $name = $entry.Key
    $score = $entry.Value
    $line = $formatString -f $name, $score
    # Print the formatted line
    # Your code here
}

Need a hint?

Use Write-Output to print each formatted line inside the loop.