Item — HN Reader

Unless I'm misreading your comment, zsh does provide similar functionality via zsh/mapfile¹. It, and a lot of other cool stuff, is documented in zshmodules(1).

¹ https://zsh.sourceforge.io/Doc/Release/Zsh-Modules.html#The-...

1 comments

I believe Bash readarray/mapfile is more like doing this in Zsh:

  lines=( "${(@f)$(my_command)}" )

  lines=( "${(@f)$(<my_file)}" )

which IMO is a little less nice than using a builtin with a name like "readarray".

But this is cool too.