dartz_extensions

A small companion package for dartz that extends Either with additional functional utilities.

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Motivation

dartz_plus was created to extend the capabilities of dartz in a clean, idiomatic way, providing common functional combinators that are missing from the core library. This helps make working with Either more expressive and concise.

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Features

Zip combinators

• zip – Combine two Either values into a Tuple2 of their Right values, returns Right or first encountered Left.
• zipLeft – Combine two Either values into a Tuple2 of their Left values, returns Left or first encountered Right.

Side-effect combinators

• tap – Perform a side effect function on the Right value and return the original Either.
• tapLeft – Perform a side effect on the Left value and return the original Either.
• tapBoth – Perform a side effect on both values and return the original Either.

Left-side mapping

• leftFlatMap – FlatMap operation on the Left side of an Either.

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Contributing

Contributions of any kind are welcome!

Whether it’s:

• Bug reports
• Feature suggestions
• Pull requests

Feel free to open an issue or submit a pull request — all help is appreciated.