JS: Forward to a site with random parts in the URL

by opening a HTML-site, I want to redirect to the following page:

https://ift.tt/2Mx9zmLOPTION1&f2=OPTION2&f3=OPTION3&f4=OPTION4&f5=OPTION5&... etc.

The value for the "OPTIONS" should be randomly selected from a list (array) for every OPTION (1,2,3,4,5,..).

How can I do this with Javascript?

kind regards