Following are the links to the workshop repositories on GitHub.
Swift Workshop - Introduction to Swift
Introductory hands on and learning the Swift syntax for variable declaration, datatypes, data structure, functions and control flow No prior programming experience is required.
Once you are in a workshop's repository, click the 'launch binder' button to launch the Binder. A Binder is an interactive environment that allows you to run code in the web browser without the need for any installations. The image below is an example from the Introduction to Swift.