Ahsan Nabi Dar ahsandar

Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

Introduction

Disclaimer: I'm a one-day-old Elixir/Phoenix developer.

In Sonny's training yesterday, we used an Ecto.Changeset to handle user registration (a database-backed operation). This worked perfectly for rendering the intial form and re-rendering the form with validation errors.

This is because our Workshop.RegistrationController is calling Repo.Insert which sets the changeset's :action, whether or not the insertion succeeds. Then Phoenix.HTML's form_for function appropriately sets errors on the form so they can be rendered on the page.

The Problem

On Blockchains - Postcapitalism - in response to: Postcapitalism by Jamie Dobson https://www.youtube.com/watch?v=MGdQnL4-H9M

An impossible thought?

But what do we want to think? I think many people want the same thing (see maslov pyramid of needs). But the ever interesting question in the history of humanity was: How to do that so that there exists an equilibrium between all humans (society) and the rest of the planet (nature). Personally I see post-capitalism as a part of a solution for that, but economy is only one thing that should change. To conceive such a complex balance is not a simple thing. Alan Kay often talks about how the internet has some biological ideas in it and yes I think to achieve that balance we need some kind of network organism where everyone is connected and heard. Even nature. So lets focus on that, the impossible thought: How can we live together in peace and prosperity with each other and nature? Sometimes, somehow this reminds me of the https://en.wikipedia.org/wiki/K

Erlang Supervisor Ghost Montior

Applies to:

Riak EE clusters with MDC:
- 1.4.x - all versions
- 2.0.x - all versions prior to Riak 2.0.7
- 2.1.x - all version; fixed in 2.2.0

About

This workaround is a mitigation for basho/riak_kv#1178

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

This is unmaintained, please visit Ben-PH/spacemacs-cheatsheet

Useful Spacemacs commands

SPC q q - quit
SPC w / - split window vertically
SPC w - - split window horizontally
SPC 1 - switch to window 1
SPC 2 - switch to window 2
SPC w c - delete current window

	package com.logentries.mq;

	import java.util.ArrayList;
	import java.util.List;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import com.logentries.api.Batch;

	# The Elixir language is very extensible to allow for future additions or
	# third party developers to take the language in directions that the original
	# authors could not predict.
	#
	# Lets start with understanding what an Elixir macro is
	iex> quote do
	...> 1 + 1
	...> end
	{:+, [context: Elixir, import: Kernel], [1, 1]}

	dynu.com
	dyn.com
	no-ip.com
	noip.com
	changeip.com
	afraid.org
	duckdns.org
	dnsdynamic.org
	duiadns.net
	myonlineportal.com

	git remote prune origin
	git branch -r --merged master \| egrep -iv '(master\|develop)' \| sed 's/origin\///g' \| xargs -n 1 git push --delete origin