They do the same thing.
Closures are completion handlers. Same same.
But, it's good to use closures when there's one path. E.g. On success, on completion.
When there are multiple possible paths, then delegates are clearer.
E.g. if x, do y. If a, do b. And sometimes the path is x, sometimes it's a.

They do the same thing.
Closures are completion handlers. Same same.

But, it's good to use closures when there's one path. E.g. On success, on completion.

When there are multiple possible paths, then delegates are clearer.
E.g. if x, do y. If a, do b. And sometimes the path is x, sometimes it's a.

Closures, completion handlers, delegates

I'm an iOS developer, helping millennials with their finances through US neo-bank, Empower.
Before making the switch to development, I was a strategist and GM in the tech space.
