I would love to see a PR that tries approach 1. And we can expand from
that. :) Thank you.
On Wed, Apr 19, 2023 at 2:40 PM Bruce Tate <br...@grox.io> wrote:
> I have been going over my notes and noting the places my students have
> trouble with standard Elixir documentation. One of them is this example
> code that starts a child for a dynamic supervisor:
>
> {:ok, agent1} = DynamicSupervisor.start_child(MyApp.DynamicSupervisor, {
> Agent, fn -> %{} end}) Agent.update(agent1, &Map.put(&1, :key, "value"))
> Agent.get(agent1, & &1) #=> %{key: "value"} {:ok, agent2} =
> DynamicSupervisor.start_child(MyApp.DynamicSupervisor, {Agent, fn -> %{}
> end}) Agent.get(agent2, & &1) #=> %{} DynamicSupervisor.count_children(
> MyApp.DynamicSupervisor) #=> %{active: 2, specs: 2, supervisors: 0,
> workers: 2}
>
>
> This code gives students two problems:
>
> 1. It expresses a concept using an arguably more complex concept, and not
> a common one: agents.
>
> 2. The child spec is not like typical gen servers because the initial
> value is a function.
>
> I propose that we start a stack rather than an agent. Failing that, I
> propose we label the concepts in the start spec with intermediate
> variables.
>
> -bt
> --
>
> Regards,
> Bruce Tate
> CEO
>
>
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>
> Groxio, LLC.
> 512.799.9366
> br...@grox.io
> grox.io
>
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