undefined | Better HN

0 pointsadenozine5y ago0 comments

Interesting perspective!

I definitely didn't know about |> def

I suppose ruby has dynamic def as well though.

0 comments

4 comments · 2 top-level

dnautics5y ago· 2 in thread

I didn't know about |> def, but at the same time I'm totally not surprised (you should never use it though).

|> case do

is a fun one that I actually do use often.

rkangel5y ago

I've almost written "|> case do" several times and then in each case have decided that it makes sense to a separate private function (with function head matching for the different cases).

mercer5y ago

I've found "|> case do" to feel 'right' at times when it's at the end of the pipeline.

tel5y ago

I don't think it's dynamic, just macros. a |> foo() |> def do ... end just gets macroexpanded to foo(a) |> def do ... end and then def foo(a) do ... end.

j / k navigate · click thread line to collapse