4. Anatomy of an XBlock#
This part of the tutorial explains the XBlock skeleton, and uses examples from the Thumbs XBlock that is installed with the XBlock SDK.
The Thumbs XBlock enables learners to vote up or down. The Thumbs XBlock keeps track of vote totals.
For information about making the XBlock that you created function like the example Thumbs XBlocK, see Customize Your XBlock.