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Discussion on: Pro tip: using Promise.then for function composition

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jhlagado profile image
John Hardy

Yes, I was thinking that as well. When chaining a sequence of maps, it's better to only map once using a composition of functions.

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shalvah profile image
Shalvah

I'm curious as to why you think it's better to "map once". I personally prefer using "then" repeatedly, because it might take a while for people who aren't familiar with functional programming to grab the concept of piping.