Yuri Leikind 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:

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:

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

	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

	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)

	require 'set'

	module Shapes

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

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

	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"

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

	class Array
	def unpack
	self[0]
	end

	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")

	package main

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