functional_cell.swift

// before
let cell = tableView.dequeueReusableCellWithIdentifier("EmployeeCell", forIndexPath: indexPath) as EmployeeCell

if let cellViewModel = viewModel.employeeCellViewModelForIndexPath(indexPath) {
    cell.configureWithViewModel(cellViewModel)
}

return cell

// after
let cell = tableView.dequeueReusableCellWithIdentifier("EmployeeCell", forIndexPath: indexPath) as EmployeeCell
let cellViewModel = viewModel.employeeCellViewModelForIndexPath(indexPath)
cellViewModel >>> EmployeeCell.configureWithViewModel(cell)
return cell

// alternate
let cell = tableView.dequeueReusableCellWithIdentifier("EmployeeCell", forIndexPath: indexPath) as EmployeeCell
let cellViewModel = viewModel.employeeCellViewModelForIndexPath(indexPath)
bind(cellViewModel, EmployeeCell.configureWithViewModel(cell))
return cell

// Don't be so clever with the class functions
let cell = tableView.dequeueReusableCellWithIdentifier("EmployeeCell", forIndexPath: indexPath) as EmployeeCell
let cellViewModel = viewModel.employeeCellViewModelForIndexPath(indexPath)
cellViewModel >>> cell.configureWithViewModel
return cell

// Another alternate
let cell = tableView.dequeueReusableCellWithIdentifier("EmployeeCell", forIndexPath: indexPath) as EmployeeCell
viewModel.employeeViewModelForIndexPath(indexPath) >>- cell.configureWithViewModel
return cell