History

tested

Undo/redo stacks of inverse-step entries. Borrows the ergonomics of stdlib's command history (bounded size, redo cleared on a new edit) but stores data (inverse steps) rather than closures — which is what makes it serializable and collab-friendly.

Source Tests

Signature

interface History

Properties

Property	Type	Default	Description
`record`	`(entry: HistoryEntry) => void`	—	Record a new edit, clearing the redo stack.
`undo`	`() => HistoryEntry \| undefined`	—	Pop the latest undo entry (and push it onto the redo stack).
`redo`	`() => HistoryEntry \| undefined`	—	Pop the latest redo entry (and push it back onto the undo stack).
`canUndo`	`() => boolean`	—	—
`canRedo`	`() => boolean`	—	—
`clear`	`() => void`	—	—