https://github.com/princemaple/elixir-side-effect

https://github.com/princemaple/elixir-side-effect

elixir pipe

Last synced: 10 months ago
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• Host: GitHub
• URL: https://github.com/princemaple/elixir-side-effect
• Owner: princemaple
• License: mit
• Created: 2016-10-03T23:27:50.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2023-06-05T06:44:30.000Z (over 2 years ago)
• Last Synced: 2025-04-04T14:49:48.815Z (10 months ago)
• Topics: elixir, pipe
• Language: Elixir
• Size: 9.77 KB
• Stars: 11
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# SideEffect

simple utils for making side effect calls and return the piped-in value in pipelines

## Installation

Add `side_effect` to your list of dependencies in `mix.exs`:

```elixir

def deps do

  [{:side_effect, "~> 0.1.0"}]

end

```

## Why

so instead of writing this:

```elixir

def three_transformations_with_a_side_effect(x) do

  temp =

    x

    |> transform1()

    |> transform2()

  notify_someone(temp)

  transform3(temp)

end

```

I'd just write:

```elixir

def three_transformations_with_a_side_effect(x) do

  x

  |> transform1()

  |> transform2()

  |> SideEffect.side_apply(&notify_someone/1)

  |> transform3()

end

```

## Usage

```

iex> 1 |> SideEffect.side_call(MyApp.send_notification()) |> List.wrap

[1]

iex> 1 |> SideEffect.side_apply(&MyApp.send_notification/1) |> List.wrap

[1]

iex> 1 |> SideEffect.side_apply(IO, :inspect) |> List.wrap

[1]

iex> 1 |> SideEffect.side_apply(IO, :inspect, [[base: :hex]]) |> List.wrap

[1]

```

```elixir

defmodule M do

  def test(a, b, c, d), do: IO.inspect([a, b, c, d])

end

b = 2

SideEffect.side_apply(b, M, :test, [1, 3, 4], 1)

# prints [1,2,3,4]

# returns 2

```