map(_:)
Creates a new column by applying a transformation to every element.
Declaration
func map<T>(_ transform: (ColumnSlice<WrappedElement>.Element) throws -> T?) rethrows -> Column<T>Parameters
- transform:
The transformation closure.
Creates a new column by applying a transformation to every element.
func map<T>(_ transform: (ColumnSlice<WrappedElement>.Element) throws -> T?) rethrows -> Column<T>The transformation closure.