How to vary my code Registration?

Answer 1

I think you mean: You want ideas to change your code -- which is named "Registration" -- in CodePlayground?

If you paste the "share" link for that code (edit your question, for example), people can more easily visit your code and offer suggestions.

Answer 2

In case you mean how to find it again, to change it:

Method 1: Your profile to your full code list
Tap on your profile avatar (the picture of the green droid)
Tap on Codes (it will have a number above it)
Your Registration code should appear in the list (and possibly any private codes you've created)
Tap on that code to edit, run, etc.

Method 2: CodePlayground (everyone's codes) to your codes
Tap and hold on the left arrow next to Q&A Discussions
SoloLearn's "Home" panel appears
Tap on { } which is the symbol for CodePlayground
Select "My Codes" from the list on the right (its default setting is "Trending")
Ensure "All" or "Web" is selected (this filters your codes)
Tap to edit/run as before.