================
Helper Functions
================

Here is a collection of helper functions used across the examples. You
can always download and read the `full source code from Gitlab`_.

.. _`full source code from Gitlab`:
   https://gitlab.com/devhowto/Dev-How-To/-/tree/main/src/composable-fp-js/lib

log
---

.. literalinclude:: /../src/composable-fp-js/lib/log.spec.js
   :language: javascript

.. literalinclude:: /../src/composable-fp-js/lib/log.js
   :language: javascript


id (identity)
-------------

.. literalinclude:: /../src/composable-fp-js/lib/id.spec.js
   :language: javascript

.. literalinclude:: /../src/composable-fp-js/lib/id.js
   :language: javascript


isNil
-----

.. literalinclude:: /../src/composable-fp-js/lib/isNil.spec.js
   :language: javascript

.. literalinclude:: /../src/composable-fp-js/lib/isNil.js
   :language: javascript


fromNullable
------------

.. literalinclude:: /../src/composable-fp-js/lib/fromNullable.spec.js
   :language: javascript

.. literalinclude:: /../src/composable-fp-js/lib/fromNullable.js
   :language: javascript


.. _helper either:

Either (Left, Right)
--------------------

.. _helper either unit tests:

Either Unit Tests
~~~~~~~~~~~~~~~~~

.. literalinclude:: /../src/composable-fp-js/lib/Either.spec.js
   :language: javascript

.. _helper either implementation:

Either Implementation
~~~~~~~~~~~~~~~~~~~~~

.. literalinclude:: /../src/composable-fp-js/lib/Either.js
   :language: javascript

tryCatch
--------

.. literalinclude:: /../src/composable-fp-js/lib/tryCatch.spec.js
   :language: javascript

.. literalinclude:: /../src/composable-fp-js/lib/tryCatch.js
   :language: javascript