mapNonNil(_:)
Creates a new column by applying the transformation to every element that isn’t missing.
Declaration
func mapNonNil<T>(_ transform: (WrappedElement) throws -> T?) rethrows -> Column<T>Parameters
- transform:
A transformation closure.
Creates a new column by applying the transformation to every element that isn’t missing.
func mapNonNil<T>(_ transform: (WrappedElement) throws -> T?) rethrows -> Column<T>A transformation closure.