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iOS Intermediate Swift Object Initialization Initialization of Value and Reference Types

Johnny Nguyen
Johnny Nguyen
3,875 Points

A convenience initializer can call a designated initializer in a superclass.

I think this statement is true. But it's actually wrong. I don't understand the reason.

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points

Hello,

Remember this rule:

A convenience initializer may not call anything outside of its own class, but it must ultimately call a designated initializer.

You may have a few convenience initializers calling other convenience initializers, but one of them must call the designated initializer.

This may sound confusing, but just remember that a convenience init may never call outside of its class.

Hope this helps