Latest #book-advanced-functional-programming-with-elixir Threads 
Avoid burying your domain rules in control flow.
Includes a Livebook so you can try it yourself.
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How to model equality as a domain rule.
Includes a Livebook so you can try it yourself.
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Connecting the pieces together.
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Same thing, different representations. That’s an Iso.
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More optics in Funx: when you need multiple foci, use a traversal.
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We’ve seen how Lens and Prism let us extract values from nested data. Now we’ll use those same projections to build layered lexicographic...
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Includes a Livebook.
Like a Lens, a Prism is composable. In Elixir, it can also help manage missing keys or expected nils, but that is ...
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Couldn’t fit optics in my book, but I can build them into Funx.
funx
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New blog post: After building out the Either DSL, I realized Funx needed a context-aware tap.
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New post in my Ash Framework series.
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Combine advanced fu...
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More optics in Funx: when you need multiple foci, use a traversal.
Includes a Livebook
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Couldn’t fit optics in my book, but I can build them into Funx.
funx
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There are many ways to solve equality: duck typing, injection, protocol dispatch.
Here’s why Funx uses the one it does:
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How to model equality as a domain rule.
Includes a Livebook so you can try it yourself.
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