public/subjects/mapper.en.md

Mapper

Instructions

• Create a map function that takes an array as first argument, a function as second, and that works like the method .map

• Create a flatMap function that takes an array as first argument, a function as second, and that works like the method .flatMap

Notions

• devdocs.io/javascript/global_objects/array/map
• devdocs.io/javascript/global_objects/array/flatmap

Code provided

Array.prototype.map = undefined
Array.prototype.flatMap = undefined
Array.prototype.flat = undefined