Freecodecamp exercises using Elixir

Solving exercises from Freecodecamp.org using Elixir programming language. Includes benchmarks and tests for every functions.

Folders that are interesting to read can be found at:

• lib/
• test/

Elixir installation

Either use Docker, this Docker automated install script curl -sSL https://get.docker.com/ | sh, or use asdf.

Using Docker

using docker_start shell script (use wsl on windows or git bash, otherwise this works both ?mac? and linux), or see the file if you want to use docker commands instead.

# I haven't tried this both on windows and mac, YMMV
source docker_start

Why source docker_start instead of chmod +x ./docker_start? read run bash script doesn't work alias command.

Getting dependencies

mix deps.get --only test

Launch REPL

iex -S mix

Stopping Elixir container, remove alias created by shell script

# where "elixir" is the name of the container
docker container stop elixir

# temporary alias are not persisted across different sessions
# but if you want to remove them
unalias elixir iex mix elixirc

Create Pre-commit Hook

mix precommit

Test

mix test

Coverage

mix text --cover

Selective tests

# i.e. you want to test only "Basic Algorithms"
mix selective_test basic_algo

# or more, separated by spaces
mix selective_test basic_algo intermediate_algo

# basic_algo        = Basic Algorithm Scripting
# intermediate_algo = Intermediate Algorithm Scripting

Generate HTML Docs

# running this generates docs in "doc/" directory
mix docs

Benchmarks (using Benchee)

# view benchmark commands
mix help benchmark

# list available functions
mix benchmark --list

# specific function
mix benchmark mutation

# benchmark results saved as html in "benchmarks/" directory
mix benchmark mutation --html