master
fix: (1) Clarify and uniform terminology and add comments to explain EC_CYCLE. (2) Fix dataZoom in `appendData`, introduced by recent commits.
lint: fix linter issues.
Merge pull request #21425 from fanwww/fix-pie-labelLine-smooth
fix(label): Clarify some of the uniformly use label layout API and data structure. Fix that some label props were not updated during layout in certain places.
style: using utility methods for type checking.