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The term for that is a "guard". Swift took it literally and introduced guard statements which force you to terminate the containing scope (return, throw, contin

The term for that is a "guard". Swift took it literally and introduced guard statements which force you to terminate the containing scope (return, throw, continue, break) or call a function that is marked as never returning. If control flow can ~~enter~~ exit the body of the guard statement without hitting one of those, it's a compiler error. EDIT: Exit the body of the guard statement, not enter.

latexr 4y ago
> ~~enter~~ I get you’re going for the non-standard markdown strike through, but that looks confusing and calls attention to something you meant to remove. You can (well, could) remove the word when editing.
- pdpi 4y ago
  It is possibly the one Markdown feature I'd like HN to have. I use it all the time on Reddit to correct my comments without making replies look like nonsense.
  - veyh 4y ago
    You can use unicode, l̶i̶k̶e̶ ̶t̶h̶i̶s̶