In this post, I will explain what functors are and why they are useful in a different way than I was taught.
When I tried to learn about the functo...
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Why did you write your
Maybe.map
implementation that way? Wouldn't it make more sense to use the function keyword and the Maybe prototype so that you don't have to leave that note aboutthis
?Something like this:
And as an additional note, your (and my rewritten) definition of maybe doesn't satisfy the laws of a functor (
maybe.map(noop) !== noop(maybe)
)You are absolutely right (:
I tried to focus on explaining the functors concept, rather than implementation in any language.
JS was chosen as it has easy syntax readable by many.
I didn't want to go into things such as prototype etc'.
But your comment is most welcome, in case it will confuse other people, I hope they will be able to get their answer here (:
Thank you, very helpful article