After finishing this course, till what extend can i code?

Question

I just want to know of I am done with this course, will it be all I need to get a hold of this language or I will need more knowledge before I can code something which makes scene aka productive

Answer 1

sololearn just gives the basic idea about the languages,you can develop simple code here.
you should explore more so that you could be perfect in a language.
you can go to tutorialpoints.com

Answer 2

thanxx

Answer 3

thats helpfull