Is it good to learn codings in sololearn?

Answer 1

Sololearn offers basic teachings to these languages. It'll be a very good start. Expand your horizon by moving to other sites like the
www.W3school.com
and
www.FreeCodeCamp.com to enhance your knowledge.
It wouldn't harm backing up your intellects with some videos from youtube as research has proven audio/video learning as one of the best ways of learning.

Answer 2

Yes it is

Answer 3

Thanks for your comments

Answer 4

Thanks for your answer