Implement a JS file

Question

How may I get a 3rd file coming in to help sort out the html files like the GeoLocation?

Answer 1

What did you exactly mean by 3rd file coming in? Do you want to add more js files to your page?

Answer 2

For example, wuen using the program called Brackets, I can make a .css file, html file, and im guessing the 3rd can be .js file.