Function getValueChange

src/store/index.ts:1118–1127

(valueId: Id)

    ) as CellChange;

  const getValueChange: GetValueChange = (valueId: Id) =>
    ifNotUndefined(
      mapGet(changedValues, valueId),
      ([oldValue, newValue]) => [
        true,
        decodeIfJson(oldValue),
        decodeIfJson(newValue),
      ],
      () => [false, ...pairNew(getValue(valueId))] as ValueChange,
    ) as ValueChange;

  const callInvalidCellListeners = (mutator: 0 | 1) =>
    !collIsEmpty(invalidCells) && !collIsEmpty(invalidCellListeners[mutator])