• selector - optional selector to scope the assertion to a nested element

The exists() assertion mirrors the corresponding interactor property and asserts that an element exists in the DOM. If the corresponding property has been redefined, a new assertion is defined which does not accept a selector.

// with a scoped selector
await new Interactor('.page')

// without a scoped selector
await new Interactor('.notification')

// when the corresponding property is overridden
@interactor class NotificationsInteractor {
  exists = exists('.notification')

// the scoped selector argument is no longer available
await new NotificationsInteractor('.notifications-tray')