Undo / Redo Demo

Programmer’s Picnic • Light Saffron Theme • History Stack

Ready

Editor

Shortcuts: Ctrl+Z (Undo), Ctrl+Y or Ctrl+Shift+Z (Redo)

How it works No framework

Undo stack

0 states

Redo stack

0 states

History limit

100 states

Last action

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On each edit, we push the previous text into undo.
When you Undo, current goes to redo, previous comes back.
When you type after undoing, redo is cleared (standard behavior).
We debounce changes to avoid saving a new state on every keystroke.

Tip: You can reuse this exact logic in your StudentDB project inputs/forms too.