## triangle

### Instructions

Create a `triangle` function that takes a string and a number as parameters
and return a triangle constructed by the string passed as argument and with the depth
of the number passed as argument.

### Output example

- '*' character and depth of 5 :

*
**
***
****
*****


### Notions

- https://nan-academy.github.io/js-training/examples/loops.js
- https://nan-academy.github.io/js-training/examples/recursion.js