api_livedata/com.tomtom.tools.android.api.livedata/contains

contains

fun <E> LiveData<out Collection<E>?>.contains(element: E): Boolean
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Return

true if element is contained in the collection that the LiveData holds. false if the element is not contained or if the LiveData doesn't have a value.


@MainThread
operator fun <K> LiveData<out Map<K, *>>.contains(key: K): Boolean
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Returns true if the LiveData's value contains the specified key.

This method allows to use the x in map syntax for checking whether an object is contained in the map.