Check for Nil Edit on GitHub
+new can always return nil. ComponentKit adopts the convention that a component may return nil from
+new to signal that it has no data to render.
This is important when you are implementing
+new; you must check if
[super +new...] returned nil before assigning to ivars.
(This is somewhat analogous to the usual pattern for implementing
-init, where you check if
[super init...] returns nil.)