Use String.fromCharCode() to convert a unicode code point (number) to the matching character:
Thanks for your answer.
This is really helpful, however, I want to write the bullet-character into an html-file so therefore I was hoping to get some kind of Notation or Code for special characters such as:
instead of the actual character (•).
Is that even possible?
I don't understand your problem.
If you really intend to reinvent the existing export for XHTML (also known as "Export for Dreamweaver"), you'd either use the numeric values within an entity reference, as you already have them, or look up the translation, or specify an appropriate charset in the Content-Type meta data matching your file encoding. But all of that has nothing to do with InDesign, instead you need a basic knowledge of web standards.