Share code between projects (React/Vue etc)

https://github.com/teambit/bit

share code between projects with your team. https://bitsrc.io

MIT Course about tools that productive programmers use

https://hacker-tools.github.io/

https://www.reddit.com/r/programming/comments/an3xki/mit_hacker_tools_a_lecture_series_on_programmer/

Notes (and partial transcription) of Dan Abramov's Redux course videos on http://egghead.io

https://github.com/tayiorbeii/egghead.io_redux_course_notes
https://learnreduxwithdanabramov.com/

GOTO 2013 • The Erlang VM or How I Stopped Worrying & Started Loving Parallel Prog. • E.Stenman

Elixir Blogs

https://stephenbussey.com/
poeticoding.com

Let's #TalkConcurrency with Joe Armstrong

Security related: Session Fixation, Timing Attacks

https://en.wikipedia.org/wiki/Session_fixation
https://en.wikipedia.org/wiki/Timing_attack

Rails - ActiveRecord related

Here's jpegs, because Twitter uses a white background to preview PNGs in the timeline but a black one in the individual photo view. pic.twitter.com/dWSz6wCSx7

— Nate Berkopec (@nateberkopec) January 11, 2019

Distributed Phoenix Chat using Redis PubSub

Using Redis
https://www.reddit.com/r/elixir/comments/aj2sf7/distributed_phoenix_chat_using_redis_pubsub/
https://www.poeticoding.com/distributed-phoenix-chat-using-redis-pubsub/?utm_source=reddit&utm_campaign=reddit_elixir_350

Using pg2 instead of Redis
https://www.poeticoding.com/distributed-phoenix-chat-with-pubsub-pg2-adapter/?utm_source=reddit&utm_campaign=reddit_programming_382

Elixir OTP Stock Quotes App (IEX Group)

https://www.reddit.com/r/elixir/comments/aivj7p/elixir_otp_stock_quotes_app_iex_group/

Developing a Slack Bot in Elixir Phoenix

https://blog.kiprosh.com/developing-a-slack-bot-in-elixir-phoenix/

https://github.com/BlakeWilliams/Elixir-Slack

Whistle - a web framework based on Elixir

https://github.com/boudra/whistle

What problems does Whistle address?

Whistle is a web framework that works a bit differently than normal MVC web frameworks. It is composed of stateful long-running components, allowing you to create interactive applications entirely in Elixir via WebSockets, while being also able to render an HTML page like any other web framework.

It aims to provide a more functional approach to building web apps in Elixir, while also taking more advantage of Erlang's actor model.

It also provides an extensive Javascript API for when Elixir alone doesn't cut it and interop with existing front-end libraries like React is needed.

Avoid these OTP Supervision performance pitfalls

https://medium.com/@derek.kraan2/avoid-these-otp-supervision-performance-pitfalls-c3fe64e70f9e

Processing Large CSV files with Elixir Streams

https://www.poeticoding.com/processing-large-csv-files-with-elixir-streams/?utm_source=reddit&utm_medium=reddit_elixir_149

ecommerce - Elixir

Avia Commerce -

https://www.aviacommerce.org/
https://github.com/aviacommerce/
https://www.aviacommerce.org/docs/products.html

https://www.reddit.com/r/elixir/comments/aclbb3/ecommerce_elixir_way_wip_faceted_search_for/

   Gitter channel - https://gitter.im/avia-commerce/Lobby


Nectar Commerce -

https://github.com/vinsol/nectarcommerce

Building a new MySQL adapter for Ecto - Plataformatec blog

https://elixirforum.com/t/announcing-a-new-mysql-driver-myxql/17124
http://blog.plataformatec.com.br/2018/11/building-a-new-mysql-adapter-for-ecto-part-i-hello-world/

Elixir Interview Questions

https://www.reddit.com/r/elixir/comments/ahib8f/elixir_interview_questions/
Card

MongoDB with Elixir

https://medium.com/@petecorey/how-to-use-mongodb-with-elixir-ac3f814f8b4a

https://whitfin.io/using-mongodb-with-elixir-phoenix-and-ecto/

Connecting to MongoDB directly from Elixir - https://github.com/ankhers/mongodb

Connecting to MongoDB via Ecto - https://github.com/ankhers/mongodb_ecto

Ecto for Beginners

http://www.learningwithjb.com/guides/ecto-for-beginners

Why We Chose Erlang over Java, Scala, Go, C

Machine Learning with Elixir and Phoenix

Communication Sequential Processes paper

Communication Sequential Processes paper

https://spinroot.com/courses/summer/Papers/hoare_1978.pdf

CSS related

https://blog.logrocket.com/firefox-devtools-for-css-authors-1511f41d1e3

git - get diff between 2 commits as a nice list of single-line commits

git log --oneline f9fff80..2b6e0da >> commits.txt

Erlang/Elixir related

Elixir/Erlang String handling - https://www.evanmiller.org/elixir-ram-and-the-template-of-doom.html
Advantages of using Erlang - https://www.evanmiller.org/why-i-program-in-erlang.html

Dave Thomas: Keynote at EMPEX Conference - May 31, 2018

https://elixirforum.com/t/should-we-adopt-daves-way-of-building-applications-as-a-series-of-components-daves-talk-has-now-been-added/14428/60

Elixir - Recursion

https://www.thebriandavis.com/posts/learning-elixir-recursion/

With Rails UJS, how to submit a remote form from a function

https://stackoverflow.com/questions/12683524/with-rails-ujs-how-to-submit-a-remote-form-from-a-function

tail + grep (multiple patterns)

https://stackoverflow.com/questions/23395665/tail-f-grep
https://unix.stackexchange.com/questions/37313/how-do-i-grep-for-multiple-patterns-with-pattern-having-a-pipe-character
https://stackoverflow.com/questions/7161821/how-to-grep-a-continuous-stream/7162898#7162898

Example: To grep for "Processing by" & "Parameters:" -
tail -f log/development.log | grep -E "Processing by|Parameters:"

Output:

2019-01-06 14:24:20.030 [INFO ] [30600:1788] Processing by Spree::ProductsController#index as JS

2019-01-06 14:24:20.031 [INFO ] [30600:1788]   Parameters: {"sort_scope"=>"default", "page"=>"12", "infiniteScroll"=>"true"}

Debounce in React

https://stackoverflow.com/questions/23123138/perform-debounce-in-react-js

React related

https://contextneutral.com/story/react-101-things-every-beginner-should-know?utm_source=js

SQL related

https://dankleiman.com/2019/01/02/stop-writing-sql-backwards/

Debounce function with args

https://stackoverflow.com/questions/23858046/debounce-function-with-args-underscore

Rails related - ActionView helpers in Assets Pipeline

https://stackoverflow.com/questions/14284278/how-to-include-actionview-helpers-in-the-assets-pipeline

Linux: Prevent SSH timeout

https://bjornjohansen.no/ssh-timeout

In ~/.ssh/config add the following line:

     ServerAliveInterval 30

This will send a “null packet” every 30 seconds on your SSH connections to keep them alive.

Write code that is easy to delete, not easy to extend.

https://programmingisterrible.com/post/139222674273/write-code-that-is-easy-to-delete-not-easy-to

Realtime Market-Data Updates with Elixir Share this

https://www.poeticoding.com/realtime-market-data-updates-with-elixir/?utm_source=reddit&utm_campaign=elixir

Elixir - how to kill a process or make it exit

https://elixirforum.com/t/how-do-i-kill-a-process-pid-0-186-0-in-iex/4491/8

Blazor

Advent of Code - Elixir

https://github.com/sasa1977/aoc
https://github.com/bjorng/advent-of-code-2018

https://elixirforum.com/tags/advent-of-code

Accessing view helpers in a Rails Console session

https://coderwall.com/p/s5sjqq/accessing-view-helpers-in-a-rails-runner-session

Phoenix LiveView discussion on elixirforum.com

https://elixirforum.com/t/phoenix-liveview-info/16569

Morphling - Similar to Phoenix LiveView, Drab

https://elixirforum.com/t/morphling-server-driven-dom-morphing-library-like-drab-liveview/18788
https://github.com/vans163/morphling

Difference between MultiCore Programming in Erlang and other languages

https://stackoverflow.com/questions/641326/what-is-the-difference-between-multicore-programming-in-erlang-and-other-language/641873#641873

http://erlang.org/download/armstrong_thesis_2003.pdf

https://en.wikipedia.org/wiki/Joe_Armstrong_(programmer)

argument solely by appeal to authority

https://research.swtch.com/dogma

...avoid argument solely by appeal to authority

ES6 - list of some of the new things

Some of the new things in ES6: 
destructuring, default parameter values, symbols, concise methods, computed properties, arrow functions, block scoping, promises, generators, iterators, modules, proxies, weakmaps, etc

Javascript - this, bind, call

// this , bind, call

var msg = "global";

function f(x){
  console.log(this.msg + "," + x);
}

var obj1 = {
  msg: "obj1",
  f: f
}

var obj2 = {
  msg: "obj2"
}

f(10);
obj1.f(10);
f.call(obj2, 10);

// f.call(window, 10);
// f.call(obj1, 10);
// f.call(obj2, 10);

// f.bind(obj1)(10)
// f.bind(obj2)(10)
// f.bind(window)(10)

Elixir - OptionParser

https://elixirforum.com/t/optionparser-and-cli/12083/5

Phoenix LiveView

https://dockyard.com/blog/2018/12/12/phoenix-liveview-interactive-real-time-apps-no-need-to-write-javascript

OpenAPI, Postman

https://github.com/OAI/OpenAPI-Specification

http://blog.getpostman.com/2018/12/11/postman-supports-openapi-3-0/

Build a Simple Persistent Key-Value Store in Elixir, using Logs

https://www.poeticoding.com/build-a-simple-persistent-key-value-store-in-elixir-using-logs-part-1/

https://www.poeticoding.com/build-a-simple-persistent-key-value-store-in-elixir-using-logs-part-2/

BEAM

https://www.reddit.com/r/elixir/comments/a1ss1b/what_actually_is_the_beam_slides_by_micha%C5%82_muska%C5%82a/

Elixir Case Studies

https://prograils.com/posts/why-discord-pinterest-moz-bleacher-report-use-elixir-case-studies

Erlang and Elixir coming to AWS Lambda

https://www.reddit.com/r/elixir/comments/a1qqjj/erlang_and_elixir_coming_to_aws_lambda/

Scoping of html classes (similar to React) in Phoenix?

https://www.reddit.com/r/elixir/comments/a24mcb/scoping_of_html_classes_similar_to_react_in/

Config in Elixir projects

Excerpt from Elixir Cookbook -

The configuration from the imported files will override any existing configuration (with the same key) in the config.exs file. In fact, Configuration values are merged recursively. See the example at https://github.com/alco/mix-config-example.
To access configuration values, we use Application.get_env(:app, :key). 

Redux - calling APIs

https://redux.js.org/advanced/asyncactions

https://redux.js.org/introduction/examples#real-world
https://codesandbox.io/s/github/reactjs/redux/tree/master/examples/real-world

https://redux.js.org/advanced/exampleredditapi

About Elixir

LMAX Disruptor concurrent framework

http://lmax-exchange.github.io/disruptor/files/Disruptor-1.0.pdf

React related: API calls when using Redux

https://www.reddit.com/r/reactjs/comments/4yesxn/api_calls_in_a_redux_app_best_practice/

AWS Cloud Development Kit

AWS re:Invent 2018: Infrastructure Is Code with the AWS Cloud Development Kit (DEV372)

https://www.reddit.com/r/programming/comments/a22fay/aws_infrastructure_as_code_using_aws_cdk/

Distributed Databases related - Citus & PostgreSQL

https://www.citusdata.com/blog/2018/11/30/why-rdbms-is-the-future-of-distributed-databases/
https://www.reddit.com/r/programming/comments/a1wwdh/why_the_rdbms_is_the_future_of_distributed/

The Benefits of Materialized Views (and how to use them in your Ruby on Rails project)

https://medium.com/@rebo_dood/the-benefits-of-materialized-views-and-how-to-use-them-in-your-ruby-on-rails-project-4ac1b5432881

Ruby map, each, collect, inject, reject, select quick reference

http://queirozf.com/entries/ruby-map-each-collect-inject-reject-select-quick-reference

Caching strategies in Phoenix

https://elixirforum.com/t/what-are-the-caching-strategies-in-phoenix/12351/4

Rails Performance related: Using nginx as Reverse Proxy Cache

https://mattbrictson.com/nginx-reverse-proxy-cache

PostgreSQL & Homebrew

https://stackoverflow.com/questions/15301826/psql-fatal-role-postgres-does-not-exist
If you're using postgres from Homebrew, then you want /usr/local/Cellar/postgresql/9.2.4/bin/createuser -s postgres (for version 9.2.4, obviously). 

Internationalization using Gettext in the Phoenix framework

https://sevenseacat.net/posts/2015/i18n-in-phoenix-apps/

memory_profiler for ruby

https://github.com/SamSaffron/memory_profiler
https://blog.skylight.io/hunting-for-leaks-in-ruby/
https://samsaffron.com

C++ book

http://www.informit.com/store/modern-c-plus-plus-design-generic-programming-and-design-9780201704310

Database Indexes - How to determine if an Index is required or not

https://dba.stackexchange.com/questions/56/how-to-determine-if-an-index-is-required-or-necessary
http://blog.celerity.com/how-to-design-sql-indexes

MIPA

 

22/08/2017, 19:03:36

B-Trees in databases are not binary trees, they are BALANCED trees

Server-side Swift for Java Developers

MySQL - importing JSON (and new feature related to it)

https://mysqlserverteam.com/import-json-to-mysql-made-easy-with-the-mysql-shell/
https://mysqlserverteam.com/importing-data-from-mongodb-to-mysql-using-python/

Reversing an immutable list

https://hackernoon.com/interview-question-reversing-an-immutable-list-in-java-57a891a521c5

UUID related

Seems like an exercise in trying to hack something using UUID guessing -

https://medium.com/@evinsellin/communicating-through-uuid-conflicts-fe50134304db

DoodleMaster - a UI Mocking Tool

https://github.com/karanchahal/DoodleMaster

Electron, Desktop PWAs

Medium article:
https://medium.com/dailyjs/goodbye-electron-hello-desktop-pwas-f316b8f39882


YouTube video:

Elixir learning resources

https://alchemist.camp/start
https://exercism.io/

RxJS Reactive Programming

https://sinxloud.com/explain-rxjs-reactive-programming/

Virtual Machines and Docker

http://zonov.me/achieving-continuous-delivery-part-2-virtual-machines-and-docker-explained/

gzip, tar

https://unix.stackexchange.com/questions/445897/unzipping-a-gz-file-to-get-a-text-file-but-getting-a-binary-file

gzip -d document.txt.gz

https://unix.stackexchange.com/questions/93139/can-i-zip-an-entire-folder-using-gzip

How to use “grep” command to find text including subdirectories

https://askubuntu.com/questions/55325/how-to-use-grep-command-to-find-text-including-subdirectories

grep -Hrn 'search term' path/to/files

MySQL Slow Queries

SELECT * FROM `mysql`.slow_log ORDER BY query_time DESC;

Database related - Composite Indexes

How do composite indexes work - https://stackoverflow.com/questions/795031/how-do-composite-indexes-work


https://stackoverflow.com/a/795068

Composite indexes work just like regular indexes, except they have multi-values keys.

If you define an index on the fields (a,b,c) , the records are sorted first on a, then b, then c.

Example:

| A | B | C |
-------------
| 1 | 2 | 3 |
| 1 | 4 | 2 |
| 1 | 4 | 4 |
| 2 | 3 | 5 |
| 2 | 4 | 4 |
| 2 | 4 | 5 |

shareimprove this answer

edited Apr 27 '09 at 20:50

answered Apr 27 '09 at 20:05

Rik

21.9k114561

• 12 Please note also that indexes are stored as Btree, so an (a,b,c) index will help on a search on (a) and on (a, b),
   but not on other searches like (b) or (b,c). – aexl Apr 30 '16 at 17:53

Two single-column indexes vs one two-column index in MySQL?

https://stackoverflow.com/a/2349824

"MySQL can use multiple-column indexes for queries that test all the columns in the index, or queries that test just the first column, the first two columns, the first three columns, and so on. If you specify the columns in the right order in the index definition, a single composite index can speed up several kinds of queries on the same table." - Multiple-Column Indexes – AlikElzin-kilaka Sep 9 at 4:46


https://stackoverflow.com/questions/2349817/two-single-column-indexes-vs-one-two-column-index-in-mysql
https://stackoverflow.com/questions/179085/multiple-indexes-vs-multi-column-indexes?rq=1

Phoenix related: Future of Drab & LiveView discussion

https://elixirforum.com/t/drab-and-liveview-community-oddities/16483/26
https://elixirforum.com/t/54-elixirconf-us-2018-closing-keynote-chris-mccord/16445/30

Reddit discussion - Let's talk about Phoenix.LiveView from Chris McCord's talk at ElixirConf 2018 US

https://www.reddit.com/r/elixir/comments/9e7n88/lets_talk_about_phoenixliveview_from_chris/

Blockchain 2018: Myths vs Reality

https://www.erlang-solutions.com/blog/blockchain-2018-myths-vs-reality.html?utm_source=Reddit&utm_campaign=BlockchainMythsvsReality2018

Elixir - How can I schedule code to run every few hours in Elixir or Phoenix framework?

https://stackoverflow.com/questions/32085258/how-can-i-schedule-code-to-run-every-few-hours-in-elixir-or-phoenix-framework