Answers for "reference script in js file"

git ubuntu store credential

$ git config credential.helper store
$ git push http://example.com/repo.git
Username: <type your username>
Password: <type your password>

[several days later]
$ git push http://example.com/repo.git
[your credentials are used automatically]

import js in html

<script type="text/javascript" src="yourfile.js"></script>