or
Returns the value of this nullable type if it's not null, or a provided default value if it is. This is a concise alternative to the elvis operator (?:) for cases where the default value is computed or retrieved from a function.
Return
The original value if not null, otherwise the result of the defaultValue lambda.
Parameters
default
A lambda function that provides the default value to return if the original value is null.
Type Parameters
T
The type of the value.