vscode-extension-dev

To register a new command in VS Code extension development, you use the `activate()` function to bind a command ID to a handler. Proper disposable management is required to ensure the command is cleanly unregistered when the extension deactivates.

VS Code activation events trigger your extension's logic based on specific conditions like opening a file type or running a command. You use them to delay extension loading until needed, ensuring efficient startup performance.

You securely store API keys in VS Code extension development using the `SecretStorage` API. This provides a secure, OS-level credential storage mechanism that protects sensitive data rather than keeping it in plain text configuration files.

Yes, you can use the `QuickPick` API in VS Code extension development to display interactive selection menus. It allows users to choose from a list of options, enabling custom workflows like selecting a specific project to work on.

The best way to manage disposables in VS Code extension development is to push them into a `context.subscriptions` array. This ensures that resources like event listeners and command registrations are automatically disposed of during deactivation, preventing memory leaks.

You display progress for long-running tasks in VS Code extension development using the `Progress` API. It allows you to show a progress indicator with cancellation support, keeping users informed while background operations execute.