The Power Of Small Abstractions
summary
Argues that tiny, local abstractions explain big behavior: identify two properties—associative composition and a neutral element—and you get folds across numbers strings lists and even functions as composable values. Shows concrete tools: use map and flatMap for boxes like lists optionals and futures, flattening nested results and chaining async calls without blocking. Points to validation-error aggregation and function composition as working examples and claims these two primitives let you build predictable, reusable plumbing that actually simplifies real code.
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