## Mapper

### Instructions

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

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

### Code provided

> The provided code will be added to your solution, and does not need to be submitted.

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

### Notions

- [devdocs.io/javascript/global_objects/array/map](https://devdocs.io/javascript/global_objects/array/map)
- [devdocs.io/javascript/global_objects/array/flatmap](https://devdocs.io/javascript/global_objects/array/flatmap)