Documentation for new Plain-functions feature #158
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diogob
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Jun 27, 2024
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| ### Transforming the output (mapping) | ||
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| Sometimes we want to use a simple function in this sort of sequential composition. Imagine that `toString` is not a composable, and you just want to apply a plain old function to the result of `add` when it succeeds. | ||
| The function `map` can be used for this, since we are mapping over the result of a `Composable`: | ||
| Sometimes we want to use a simple function to transform the output of another function. Imagine you want to apply a plain old function to the result of `add` when it succeeds. | ||
| The function `map` can be used for this: |
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I guess we will eventually have assign map a different raison d'être since there are several cases now where you could just use pipe.
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Yes, thought about it yesterday but here follows the differences:
- pipe accepts many functions
- map passes the input to the second function
- map infers the arguments of second function while you've got to declare them in pipe
Having thought about that I believe there are places for both to coexist
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I do believe there is, and I find map is probably going to be a very convenient way to transform output. We have, however, to find a good concept to encapsulate the differences you have pointed out to use in the docs.
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