#map

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Sep 22, 2020/4 mins read/---
Tricky use case of Array.prototype.map in JS
If you are familiar with functional programming, Array.prototype.map must be a function that you work with every day. We encountered a tricky use case of it at Cốc Cốc recently, it took me a while to figure out, and here's the answer...

#map

Tricky use case of Array.prototype.map in JS