watchViewModel

API / watchViewModel<TViewModel> hook

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DEPRECATED!

In future versions this hook will be removed, switch to useViewModel.

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Watches the view model for changes, requesting a render when it does. The view model and watched properties are part of the hook dependencies.

function watchViewModel<TViewModel extends INotifyPropertiesChanged>(viewModel: TViewModel, watchedProperties?: readonly (keyof TViewModel)[])

Template Parameters

• TViewModel: the type of view model to watch. Must implement INotifyPropertiesChanged.

Parameters

• viewModel: TViewModel, The view model to change, a view model is any object that implements INotifyPropertiesChanged.
• watchedProperties: readonly Array<keyof TViewModel>, optional, a render will be requested when only one of these properties has changed.