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_flux • yesterday at 1:25 PM • 1 reply • view on HN

How does this work if it is given an empty list as a parameter?

I guess if one is always able to construct default values of T then this is not a problem.

Replies

maccard • yesterday at 4:10 PM

> I guess if one is always able to construct default values of T then this is not a problem.

this is how go handles it;

  func do_thing(val string) (string, error)
is expected to return `"", errors.New("invalid state")` which... sucks for performance and for actually coding.