How to clear the form after closing the modal window?

Question

JavaScript

My problem is that I can’t clear the form after closing the modal window, since there are only 3 modal windows, it turns out that when you close and reopen, the error that the field is not filled remains. For the number I use inputmask.js
My code is here
https://jsfiddle.net/hollanditkzn/3orLu3x0/1/
And here is a screenshot

Answer 1

form.reset()

Answer 2

https://jsfiddle.net/3orLu3x0/2/