Think of it as unix pipes. F# uses the exact same notation and in fact in
F# the |> notation is now more prevalent than "regular" function
application notation because if read left to right instead right to left.
You could also think of it a one special case of the monadic (oops! I
said the m-word) >>= operator in Haskell.
On Sunday, September 20, 2015 at 11:08:59 AM UTC+2, Daniel Carrera wrote:
>
> Looking at the code examples from Gtk.jl I found this code example:
>
> w = Gtk.@Window() |>
> (f = Gtk.@Box(:h) |>
> (b = Gtk.@Button("1")) |>
> (c = Gtk.@Button("2")) |>
> (f2 = Gtk.@Box(:v) |>
> Gtk.@Label("3") |>
> Gtk.@Label("4"))) |>
> showall
>
>
> This is just a compact way to create a Gtk window and put some objects in
> it. But I had never seen that `|>` operator before, and I can't figure out
> what it's doing. Is this operator somehow unique to Gtk.jl ? It can see
> that they use it to nest widgets inside containers, but it's not clear to
> me how it does it.
>
> Cheers,
> Daniel.
>
