How to control Sass Variable with javascript

Question

I have a Sass file which is generating a CSS file. I have used many variables in my sass file for background color, font-size, now I want to control my all variables through

Answer 1

If you're looking to do what bootstrap do (ie editing fields to download a theme).

You'd have to:

1. Have the files on hand that you want to edit
2. Store these variables as a string, and use .replace() to search and replace variables
3. Output this string and compile it to a file and or zip it up for download.

I'd personally do this with php.