Custom Operators

May 29, 2019 · View on GitHub

When do we use them?

Custom operators should be avoided. Custom operators can reduce the readability of the code because there can be confusion around their functionality.

Key Considerations

  • Overloading operators should be used sparingly, e.g. protocol conformance such as Equatable or when two objects are backed by a numeric value such as Price.

  • Place the implementation of any custom operators in an extension on the type it operates on.

  • Be sure to refer to our Extensions document when deciding how to name the extension.

Reference Docs