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## Last First Kiss
### Instructions
Create 3 functions:
- `first` : that takes an array or a string and returns its first element or character.
- `last` : that takes an array or a string and return its last element or character.
- `kiss` : that takes an array or string, and returns an array of 2 elements. The returned array should contain the last and first elements or characters, in that order.
### Notions
- [Data Structures.js ](https://nan-academy.github.io/js-training/examples/data-structures.js )
- [Get.js ](https://nan-academy.github.io/js-training/examples/get.js )
