Js encapsulated map? What's the use? A rookie, please give me your advice.

just ask what the encapsulation map is for.

Mar.05,2021

corresponds to map and reduce , which people who are used to functional programming especially like to use. For example, the front-end framework React and its ecosystem use map a lot. Of course, I just described the phenomenon, the specific article https://research.google.com/archive/mapreduce.html

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