Add a `label:` option to IO.inspect

[pragdave]

When I use IO.inspect in a pipeline, I often find myself wanting to tag the output with some kind of label:

~~~ elixir

get_name()

|> IO.inspect()

|> lookup_score()

|> IO.inspect

~~~

so I sometimes write a trivial helper

~~~

def dump(value, label) do

  IO.puts "#{label}: #{inspect value}"

  value

end

~~~

This means I can write:

~~~ elixir

get_name()

|> dump("Name is")

|> lookup_score()

|> dump("score")

~~~

Any chance we could

1. Add a `label: "text"` option to IO.inspect?

2. Add a new signature to IO.inspect, so that

  ~~~~

  def inspect(value, label) when  is_binary(label) do

    inspect(value, label: label)

  end

  ~~~

I'd happily do the PR

Dave

[Paul Schoenfelder]

You can already do this today with IO.inspect(foo, label: "label") :)

Paul 

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[pragdave]

Damn. That was quick.

(hides head in shame)