Save Shortcut Kbd for React

S for save was set early by the Macintosh's standard File menu, and Windows followed with Ctrl S. Decades of habit made it one of the shortcuts people press without thinking.

Yes: ⌘S on macOS, Ctrl S on Windows, Linux and ChromeOS. Show the one that matches the user's platform, as the Platform-Aware Shortcut example does.

Yes. Without a handler, the browser opens its own Save Page dialog, which is never what someone in your editor wants. Handle it with a keydown listener and preventDefault, then save now or confirm that everything is already saved.

A short confirmation: Saved in the toolbar, a check on the Save button or a toast. If saving takes time, show progress, and if it fails, say so and keep the changes.

Still catch it so the browser's dialog doesn't open, and confirm that everything is saved. Disabling the Save button is fine; ignoring the shortcut silently isn't.

They must be able to: always offer a visible Save Button or menu item. The key caps next to it teach the shortcut to people who want it.