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by mejutoco
1290 days ago
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From the beginning of the article: > The basic operators here are ^., .~, and %~. If you’re not a fan of funny-looking operators, Control.Lens provides more helpfully-named functions called view, set, and over (a.k.a. mapping); these three operators are just aliases for the named functions, respectively. For these exercises, we’ll be using the operators. |
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