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Undo and redo document changes with familiar keyboard shortcuts. Track up to 100 editing actions. Press Cmd+Z to undo, Cmd+Shift+Z to redo.

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How it works

  • Automatic grouping - Changes within 500ms are grouped as one action
  • Deep history - Stores up to 100 undo steps by default
  • Smart tracking - Preserves selection and cursor position

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Use Case

  • Mistake recovery - Quickly undo accidental deletions or changes
  • Experimentation - Try different edits knowing you can revert
  • User confidence - Standard feature users expect in any editor

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Options

Configure the extension behavior:
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depth
number
default:"100"
Maximum undo/redo steps to remember
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newGroupDelay
number
default:"500"
Milliseconds to wait before starting a new history group

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Commands

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undo

Undo the last action
Groups changes within the newGroupDelay window
Example: 
editor.commands.undo()

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redo

Redo the last undone action
Only available after an undo action
Example: 
editor.commands.redo()

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Keyboard Shortcuts

CommandShortcutDescription
undo()⌘/Ctrl-zUndo last action
redo()⌘/Ctrl-Shift-zRedo last action
redo()⌘/Ctrl-yRedo last action (alternative)

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Source Code

⌘I