setLastEntryIndexOneLess function

void setLastEntryIndexOneLess()

Implementation

void setLastEntryIndexOneLess() => getLastEntryIndex() - 1 <
        0 // we dont have to be null aware as this fx takes care of the nullability check
    ? prefs.setDouble("lastEntryIndex", 0)
    : prefs.setDouble("lastEntryIndex", getLastEntryIndex() - 1);