I'm checking like twice or three times a day for new episodes :)

listen to Nike :) ahahaha

Setting up the sliders with a ViewModel really helped my understanding of MVVM. This is my VM: ``` class SettingsViewModel { var ageRange: AgeRange = AgeRange(min: 18, max: 36) var minAge: Int { set(newValue) { if newValue > ageRange.max { maxAge = newValue + 1 } ageRange = AgeRange(min: max(18, newValue), max: ageRange.max) bindableAge.value = ageRange } get { return ageRange.min } } var maxAge: Int { set(newValue) { if newValue < ageRange.min { minAge = newValue - 1 } ageRange = AgeRange(min: ageRange.min, max: min(100, newValue)) bindableAge.value = ageRange } get { return ageRange.max } } var bindableAge = Bindable<AgeRange>() } ``` Binding is straightforward: ``` settingsViewModel.bindableAge.bind { [unowned self] (ageRange) in guard let ageRange = ageRange else { return } let indexPath = IndexPath(row: 0, section: 5) guard let cell = self.tableView.cellForRow(at: indexPath) as? AgeRangeCell else { return } let (minAge, maxAge) = (ageRange.min, ageRange.max) cell.minLabel.text = "Min \(minAge)" cell.maxLabel.text = "Max \(maxAge)" cell.minSlider.value = Float(minAge) cell.maxSlider.value = Float(maxAge) } ``` And handler code could not be simpler: ``` @objc fileprivate func handleMinAgeChange(slider: UISlider) { settingsViewModel.minAge = Int(slider.value) } ```

What is this AgeRange?

struct AgeRange { let min: Int let max: Int }

Tx man!

Great job, slcott! I also have to do some more stuff with this technique (bindable + MVVM). It's a great way to write better code.

By the way, why did you set the age range to 18-36 at the beginning of your model? var ageRange: AgeRange = AgeRange(min: 18, max: 36) Also, when I want to adjust the age, the minimum age slider automatically jumps back to 18 :-) it should stay fixed until the user decides to move it.

Did you initialize the `settingsViewModel`? Inside of `setupSettingsViewModelObserver()`, you must initialize it by doing this: ``` if let user = user { settingsViewModel.minAge = Float(user.minSeekingAge ?? 18) settingsViewModel.maxAge = Float(user.maxSeekingAge ?? 36) } ```

What does it mean?

Oh i see. Thank you for your explanation!