What is the link between bages(achivements) and xp?

Question

some coder have bundle of xp in only course. why is it so?

Answer 1

@MI
badges give you XP. check the code posted by @luka for info.

for getting them, check the badge description or this post below
https://www.sololearn.com/discuss/688373/?ref=app

those people with XP beyond 300 or so do challenges available in the mobile app of Sololearn
https://play.google.com/store/apps/details?id=com.sololearn&hl=en
SoloLearn: Learn to Code for Free - Android Apps on Google Play