What to learn css preprocessors, css frameworks, builders or basic javascript?

Question

JavaScript

what to learn css preprocessors, css frameworks, builders or javascript basics?
what to learn after html+css?

Answer 1

Learn the basics of javascript

Answer 2

Proprocessors are already used almost everywhere in modern layout. Collectors too.
I recommend that you first start with them, then smoothly switch to JavaScript, while you figure out the assemblers - tighten up your skills a little.

Answer 3

After html/css, JavaScript is better. So that the work of the assemblers does not seem like magic.

Answer 4

All of the above in parallel