elixir

Tags: computers

• https://elixirforum.com/
• https://elixir.bootlin.com/linux/latest/ident/lock_kernel

Conventions

• folders under /lib/<application_name>

Projects

• https://getoban.pro/
• https://livebook.dev/

Prometheus Metrics

• @counter -> Adds a prometheus metric
  • https://hexdocs.pm/prometheus_ex/Prometheus.Metric.html
  • Usage
    • declare a counter with

      @counter [name: :name,
                labels: [:label1, :label2],
                help: "#{__MODULE__} name"]
      

    • increment a counter with

      Counter.inc([name: :name, labels: [label1, label2]])
      

Platforms

• https://gigalixir.com/

exmagick issues with Apple M1 chip:

• https://githubmemory.com/repo/Xerpa/exmagick/issues/16

asdf Support

• Prebuild binary list https://bobs-list.kobrakai.de/elixir

ETS

• Concurrent table: https://www.openmymind.net/Learning-Elixir-ETS/

Trees - https://www.erlang.org/doc/man/gb_trees.html

Time Zones

• https://hexdocs.pm/timex/3.2.0/Timex.Timezone.html#content
• https://elixirforum.com/t/format-a-datetime-using-strftime-with-the-offset-calculated-in-the-hours/41811
• https://hexdocs.pm/elixir/main/DateTime.html#shift_zone!/3
• https://github.com/lau/tzdata
• https://github.com/mathieuprog/tz

Benchmarking

• https://github.com/bencheeorg/benchee
• https://github.com/michalmuskala/jason#benchmarks

Monitoring for elixir

• https://github.com/infinityoneframework/etop#etop---a-unix-like-top-library-for-elixir-applications
• https://github.com/infinityoneframework/etop#etop---a-unix-like-top-library-for-elixir-applications

Elixir Nodes

• https://railsware.com/blog/interconnecting-elixir-nodes/

parser combinators

• https://hexdocs.pm/nimble_parsec/NimbleParsec.html
• https://github.com/dashbitco/nimble_options
• https://github.com/dashbitco/nimble_parsec/blob/master/examples/simple_language.exs

Streams

• https://bartoszgorka.com/elixir-enum-vs-stream

schedulers

• https://fly.io/blog/carving-the-scheduler-out-of-our-orchestrator/

Liveview

• https://fly.io/phoenix-files/a-liveview-is-a-process/

Connection Pool (DBPool)

• https://jumpwire.io/blog/dbconnection-pooling-deep-dive

Leetcode stuff

• Enum.frequencies
• destructuring and iterating with []
• Enum.split_with
• String.codepoints/String.graphemes
• hd and tl for manipulating a list
• you can hash a list directly for a map!

Meetups

• https://www.meetup.com/new-york-city-elixir/events/298281732

Libraries

• https://github.com/ananthakumaran/fdb - Foundation DB