- addToValueList
Adds a value to a list of values in the map. Creates a new list if no list is
found for the key.
- getItemAtPositionOrNull
Returns the n-th item or null if collection is smaller.
- isEmpty
Returns true if the given collection is null or empty, otherwise returns false.
- isNotEmpty
Returns true if the given collection is not null and not empty, otherwise
returns false.
- nullToEmpty
Returns an empty Collection if argument is null.
- objectToDataCollection
Converts a collection of any type to a collection of Data.
- toIntArray
Converts a Collection to a primitive int[] array.