public/subjects/filter.en.md

## Filter

### Instructions

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

- Create a `reject` function that takes an array as first argument, a function as second,
and that works like the reject function from lodash.

- Create a `partition` function that takes an array as first argument, a function as second,
and that works like the partition function from lodash.


### Notions

- [https://devdocs.io/javascript/global_objects/array/filter](https://devdocs.io/javascript/global_objects/array/filter)
- [https://lodash.com/docs/4.17.15#reject](https://lodash.com/docs/4.17.15#reject)
- [https://lodash.com/docs/4.17.15#partition](https://lodash.com/docs/4.17.15#partition)


### Code provided
```js
Array.prototype.filter = undefined
```