Tldraw/examples/core-example-advanced/src/state/actions/erase/eraseGhostShapes.ts

import type { Action } from 'state/constants'

export const eraseGhostShapes: Action = (data) => {
  const idsToDelete = Object.values(data.page.shapes)
    .filter((shape) => shape.isGhost)
    .map((shape) => shape.id)

  idsToDelete.forEach((id) => delete data.page.shapes[id])

  data.pageState.selectedIds = data.pageState.selectedIds.filter((id) => !idsToDelete.includes(id))

  if (data.pageState.hoveredId && idsToDelete.includes(data.pageState.hoveredId)) {
    data.pageState.hoveredId = undefined
  }
}