Learning Functional Programming in Go

Reading existing proposals

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This is the feature that would dramatically improve our recursive function calls, for example, the Y-Combinator.

Remember our benchmark test results from running the SumRecursive function in Chapter 1, Pure Functional Programming in Go? It was about three times slower that the imperative version. The lack of TCO is the single most important reason why using FP on Go today is generally not recommended. Adding TCO to the list of Go's compiler features would solve this problem. That is why this low impact, high reward feature is so important.

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