September 2017
Beginner to intermediate
396 pages
9h 46m
English
Content preview from Haskell Cookbook
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Getting ready
In this example, we will use the Writer monad transformer to keep updating a balance sheet with transactions. We will keep pushing transactions to the Writer monad, finally yielding the balance after all transactions are processed.
We will work with the mtl library in this recipe.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.