VS Code with PowerShell extension - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the PowerShell extension in VS Code?

The PowerShell extension in VS Code helps you write, run, and debug PowerShell scripts easily inside the editor. It adds features like syntax highlighting, IntelliSense (auto-completion), and integrated debugging.

beginner

How do you install the PowerShell extension in VS Code?

Open VS Code, go to the Extensions view by clicking the square icon on the left or pressing Ctrl+Shift+X, then search for 'PowerShell' and click 'Install' on the official Microsoft PowerShell extension.

intermediate

What feature in the PowerShell extension helps you find errors in your script before running it?

The PowerShell extension uses a built-in script analyzer that checks your code for errors and style issues as you type, showing warnings and errors in the Problems panel.

beginner

How can you run a PowerShell script inside VS Code using the PowerShell extension?

You can run a script by pressing F5 to start debugging or by right-clicking inside the script editor and selecting 'Run PowerShell Script'. The output appears in the integrated terminal.

beginner

What is IntelliSense in the context of the PowerShell extension in VS Code?

IntelliSense is a feature that provides smart code completions, suggestions, and parameter info as you type, helping you write scripts faster and with fewer mistakes.

Where do you find the PowerShell extension in VS Code to install it?

A Extensions view (Ctrl+Shift+X)

B File menu

C Terminal panel

D Debug view

The Extensions view is where you search and install extensions like PowerShell.

What key do you press to run a PowerShell script with debugging in VS Code?

A Ctrl+R

B F5

C F1

D Ctrl+Shift+P

F5 starts the debugger and runs the script.

Which feature helps you see errors and warnings in your PowerShell script as you type?

A Script Analyzer

B Terminal

C File Explorer

D Source Control

Script Analyzer checks your code for issues and shows them in the Problems panel.

What does IntelliSense provide in the PowerShell extension?

A Terminal commands

B File backups

C Code completions and suggestions

D Theme customization

IntelliSense helps by suggesting code completions and showing parameter info.

Where does the output of a PowerShell script appear when run inside VS Code?

A Output panel only

B Problems panel

C Debug console only

D Integrated terminal

The integrated terminal shows script output when you run scripts.

Explain how to install and use the PowerShell extension in VS Code to write and run scripts.

Think about the steps from installation to running a script.

Describe the benefits of using the PowerShell extension in VS Code for beginners.

Focus on features that help write and debug scripts easily.

Practice

1. What is the main benefit of using the PowerShell extension in VS Code?

easy

A. It provides syntax highlighting and debugging for PowerShell scripts.

B. It automatically converts PowerShell scripts to other languages.

C. It disables the integrated terminal in VS Code.

D. It removes the need to write any PowerShell commands.

Solution

1. Step 1: Understand VS Code PowerShell extension features

   The extension adds helpful features like syntax highlighting and debugging to make scripting easier.

2. Step 2: Evaluate each option

   Only It provides syntax highlighting and debugging for PowerShell scripts. correctly describes these benefits. Options A, B, and C are incorrect or false.

3. Final Answer:

   It provides syntax highlighting and debugging for PowerShell scripts. -> Option A

4. Quick Check:

   PowerShell extension features = syntax highlighting and debugging [OK]

Hint: Remember: PowerShell extension improves script editing and debugging [OK]

Common Mistakes:

• Thinking it converts scripts to other languages
• Believing it disables the terminal
• Assuming it removes the need to write commands

2. Which of the following is the correct way to run a PowerShell script file named script.ps1 inside VS Code terminal?

easy

A. Run-File script.ps1

B. Execute script.ps1

C. ./script.ps1

D. Start script.ps1

Solution

1. Step 1: Identify how to run scripts in PowerShell terminal

   PowerShell runs scripts by calling their path, usually with ./filename.ps1 if in current folder.

2. Step 2: Check each option

   Only ./script.ps1 uses the correct syntax ./script.ps1. Others are invalid commands.

3. Final Answer:

   ./script.ps1 -> Option C

4. Quick Check:

   Run script with ./filename.ps1 [OK]

Hint: Use ./ before script name to run in terminal [OK]

Common Mistakes:

• Using non-existent commands like Run-File or Execute
• Forgetting ./ before script name
• Typing Start instead of running script path

3. Given this PowerShell script opened in VS Code:

Write-Host "Hello, VS Code!"

What will be the output when you run it in the integrated terminal?

medium

A. Write-Host "Hello, VS Code!"

B. Hello, VS Code!

C. Error: Command not found

D. No output

Solution

1. Step 1: Understand Write-Host command

   Write-Host prints the text string directly to the console output.

2. Step 2: Predict output of the script

   The script prints exactly: Hello, VS Code! to the terminal.

3. Final Answer:

   Hello, VS Code! -> Option B

4. Quick Check:

   Write-Host outputs text = Hello, VS Code! [OK]

Hint: Write-Host prints text exactly to terminal [OK]

Common Mistakes:

• Thinking it prints the command itself
• Expecting an error for a valid command
• Assuming no output is shown

4. You wrote this script in VS Code with PowerShell extension:

Write-Host "Start"
Write-Host "End"

But when you run it, only "Start" appears and then it stops. What is the likely cause?

medium

A. The script has a syntax error stopping execution.

B. Write-Host only prints the first line.

C. The integrated terminal is not open.

D. You pressed Ctrl+C stopping the script after first line.

Solution

1. Step 1: Analyze script behavior

   The script has two Write-Host lines, both valid and should print Start then End.

2. Step 2: Consider why only first line prints

   If execution stops early, a manual interrupt like Ctrl+C is likely cause, not syntax or terminal issues.

3. Final Answer:

   You pressed Ctrl+C stopping the script after first line. -> Option D

4. Quick Check:

   Manual interrupt stops script early [OK]

Hint: Check if script was manually stopped (Ctrl+C) [OK]

Common Mistakes:

• Assuming syntax error without checking
• Thinking terminal closed stops partial output
• Believing Write-Host prints only first line

5. You want to debug a PowerShell script in VS Code using the PowerShell extension. Which steps correctly start debugging?

hard

A. Open the script, press F5, and use breakpoints to pause execution.

B. Run the script in external PowerShell console only, no debugging in VS Code.

C. Right-click script and select 'Convert to Debug Mode' before running.

D. Save the script as .psdebug file and run it.

Solution

1. Step 1: Understand debugging in VS Code PowerShell extension

   You open the script, set breakpoints, and press F5 to start debugging inside VS Code.

2. Step 2: Evaluate options

   Open the script, press F5, and use breakpoints to pause execution. correctly describes this process. Options B, C, and D describe invalid or non-existent steps.

3. Final Answer:

   Open the script, press F5, and use breakpoints to pause execution. -> Option A

4. Quick Check:

   Debug with F5 and breakpoints in VS Code [OK]

Hint: Press F5 in VS Code to start debugging PowerShell scripts [OK]

Common Mistakes:

• Thinking debugging requires external console
• Looking for 'Convert to Debug Mode' option
• Saving script with wrong extension for debugging