public/subjects/collections/README.md

## Collections

### Instructions

Write a bunch of functions which converts data from one type to another:

- `arrToSet`: from `Array` to `Set`.
- `arrToStr`: from `Array` to `string`.
- `setToArr`: from `Set` to `Array`.
- `setToStr`: from `Set` to `string`.
- `strToArr`: from `string` to `Array`.
- `strToSet`: from `string` to `Set`.
- `mapToObj`: from `Map` to `Object`.
- `objToArr`: from `Object` to `Array`.
- `objToMap`: from `Object` to `Map`.
- `arrToObj`: from `Array` to `Object`.
- `strToObj`: from `string` to `Object`.

Finally, write a function named `superTypeOf` that unlike `typeof` returns a specific values for advanced types like `Map` and `Set`.

### Examples

```js
const str = 'hello'
const arr = [1, 2, 1, 3]
const obj = { x: 45, y: 75, radius: 24 }
const set = new Set()
const map = new Map()
set.add(1)
set.add(2)
set.add(1)
set.add(3)
map.set('a', 1)
map.set('b', 2)
map.set(3, 'c')
map.set(4, 'd')

arrToSet(arr) // -> Set { 1, 2, 3 }
arrToStr(arr) // -> '1213'
setToArr(set) // -> [1, 2, 3]
setToStr(set) // -> '123'
strToArr(str) // -> ['h', 'e', 'l', 'l', 'o']
strToSet(str) // -> Set { 'h', 'e', 'l', 'o' }
mapToObj(map) // -> { a: 1, b: 2, '3': 'c', '4': 'd' }
objToArr(obj) // -> [45, 75, 24]
objToMap(obj) // -> Map { 'x' => 45, 'y' => 75, 'radius' => 24 }
arrToObj(arr) // -> { '0': 1, '1': 2, '2': 1, '3': 3 }
strToObj(str) // -> { '0': 'h', '1': 'e', '2': 'l', '3': 'l', '4': 'o' }

superTypeOf(map) //         -> 'Map'
superTypeOf(set) //         -> 'Set'
superTypeOf(obj) //         -> 'Object'
superTypeOf(str) //         -> 'String'
superTypeOf(666) //         -> 'Number'
superTypeOf(NaN) //         -> 'Number'
superTypeOf(arr) //         -> 'Array'
superTypeOf(null) //        -> 'null'
superTypeOf(undefined) //   -> 'undefined'
superTypeOf(superTypeOf) // -> 'Function'
```

### Notions

- [typeof](https://devdocs.io/javascript/operators/typeof)
- [Spread syntax](https://devdocs.io/javascript/operators/spread_syntax)
- [Map](https://devdocs.io/javascript/global_objects/map)
- [Set](https://devdocs.io/javascript/global_objects/set)
- [Object.fromEntries](https://devdocs.io/javascript/global_objects/object/fromentries)
- [Object.entries](https://devdocs.io/javascript/global_objects/object/entries)