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  test "ets match, select, and select_delete" do
    ets_table_name = :bar
    :ets.new(ets_table_name, [:named_table, :set, :private])

    expires_at1 = ~U[2021-01-07 15:00:00.000000Z]

    # ~U is just a syntax sugar for struct DateTime
    IO.inspect(~U[2021-01-07 15:00:00.000000Z], structs: false)

    # I would convert DateTime to unix seconds and put it as a separate field to the ets record

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case Connection.open(amqp_url) do
  {:error, reason} -> # pattern matching
    Logger.error(["Cannot establish connection to RabbitMQ, reason:", inspect(reason)])
    {:error, reason}

  {:ok, connection} -> # pattern matching
    {:ok, channel} = Channel.open(connection) # pattern matching

    Exchange.declare(channel, @exchange, :fanout)

leikind

Keybase proof

I hereby claim:

• I am leikind on github.
• I am leikind (https://keybase.io/leikind) on keybase.
• I have a public key ASDfZ5OGmfASmpWp5FyIxWP0wwPHAP3YNEp0D4Xn6SQ54go

To claim this, I am signing this object:

leikind

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

leikind

require 'set'

module Shapes

  class Coordinate < Struct.new(:x, :y)
    def inspect; "#{x}:#{y}"; end
  end

  class Line < Struct.new(:p1, :p2)
    def inspect

leikind

defmodule Efrontback.AuthExamples do

  alias Efrontback.Device
  alias Efrontback.User
  alias Efrontback.Repo

  use Efrontback.Web, :model

  def no_schema() do
    real_device_token = "abcdefg"

leikind

# kinda library code
def pack(v)
  [v]
end

class Array
  def unpack
    self[0]
  end

leikind

def string_to_number(str)
  Integer('0b' + str.unpack('B*')[0])
end

def number_to_utf8_string(num)
  str = [num.to_s(2)].pack('B*')
  str.force_encoding(Encoding::UTF_8)
end

p string_to_number("мудак")

leikind

package main

import (
	"fmt"
	"github.com/nfnt/resize"
	"image/jpeg"
	"io"
	"os"
)

leikind

ElixirCoin

Let's build a small distributed system to mine a new cryptocurrency and become millionaires in ElixirCoins!

An ElixirCoin is a {secret_string, positive_integer} pair for which the MD5 digest of the concatenation of the secret string with the given integer is a hash whose hexadecimal representation starts with at least 5 consecutive zeroes.

For instance:

• {"foo", 123} is not an ElixirCoin because the MD5 hash of foo123 is ef238ea00a26528de40ff231e5a97f50
• {"Serun+u", 1} is a valid ElixirCoin because the MD5 hash of Serun+u1 is 00000011f4de73238f12fb2c57d5dc56