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## Interpolation
### Instructions
Create a function called `interpolation` that takes an object with 5 properties
`step`, `start`, `end`, `callback` and `duration`.
This function must calculate the interpolation points, (x, y),
4 years ago
from the `start` position to `end` position depending on the number of steps.
All the points must be calculated in the duration time.
For each interpolation point you must call `callback` function with parameter - interpolation point ([x, y]).
Each interpolation point should be calculated with interval of `duration / step`.
### Example
```
step = 5
start = 0
end = 1
duration = 10
t
|
10 |_______________. <- execute callback([0.8, 10])
| |
| |
8 |___________. |
| | |
| | |
6 |_______. | |
| | | |
| | | |
4 |___. | | |
| | | | |
| | | | |
2 . | | | |
| | | | |
|___|___|___|___|___d
0 0.2 0.4 0.6 0.8
```
### Notions
- [javascript.info/settimeout-setinterval](https://javascript.info/settimeout-setinterval)