install exercism
brew install exercism
exercism configure --token=<go to https://exercism.org/settings/api_cli>
exercism download --track=vimscript --exercise=hello-world
Default download path is $HOME/Exercism/vimscript/hello-world.
After finishing the example.
exercism submit hello_world.vim
Get all exercises from website.
exercism use Vader as a test tool for Vimscript.