kerryb

# A proc is just a block of code that can be called later:

say_hello = -> { 2 + 2 }

say_hello.call # => 4

# Procs can take parameters:

double = ->(x) { x * 2 }

kerryb

#!/usr/bin/env elixir

Mix.install([
  {:httpoison, "~> 1.8"},
  {:jason, "~> 1.3"}
])

defmodule Space do
  def run do
    fetch_data()

kerryb

text
|> String.split("\n")
|> Enum.reduce({["{"], "    "}, fn line, {output, current_indent} ->
  case Regex.run(~r/^( +)(.*): ?(.*)/, line, capture: :all_but_first) do
    [indent, key, ""] ->
      close_braces =
        if indent < current_indent do
          Enum.map_join(
            (String.length(current_indent) - 4)..String.length(indent)//-4,
            "",

kerryb

class Stack

  class Empty < RuntimeError; end

  def initialize
    @items = []
  end

  def empty?
    @items.count == 0

kerryb

Changeset/Form issue

Mix.install([
  {:phoenix_live_view, "~> 0.20.1"},
  {:phoenix_ecto, "~> 4.4"}
])

Create a struct