Initializer
init(dataRepresentation:relativeTo:isAbsolute:)
iOS 9.0+
iPadOS 9.0+
Mac Catalyst 9.0+
macOS 10.11+
tvOS 9.0+
watchOS 2.0+
Initializes a newly created URL using the contents of the given data, relative to a base URL.
Discussion
If the data representation isn’t a legal URL string as ASCII bytes, the URL object may not behave as expected. This initializer returns nil if it can’t form a valid URL from the provided data.