What do I need to know in css and HTML to start javascript

Answer 1

That depends on you, there's no general rule for it.

Take the time you need and don't hurry.

Start learning, don't procrastinate waiting for a reply that you want to hear. :)

Answer 2

Knowing html and css basics is helpful.

Answer 3

Mostly the basics :)

Answer 4

How long does it take to learn JavaScript very well if one actually dedicate his/her time to it