fnky

function useSelectors(reducer, mapStateToSelectors) {
  const [state] = reducer;
  const selectors = useMemo(() => mapStateToSelectors(state), [state]);
  return selectors;
}

function useActions(reducer, mapDispatchToActions) {
  const [, dispatch] = reducer;
  const actions = useMemo(() => mapDispatchToActions(dispatch), [dispatch]);
  return actions;

ThomasG77

5 minutes PgAdmin4 Desktop install guide

Done on Linux (Ubuntu tested)

Virtualenv & install of Python package & its deps

cd $HOME
virtualenv --python=/usr/bin/python2.7 pgadmin4
source pgadmin4/bin/activate

BretFisher

Docker Cli Tips and Tricks

• bret@bretfisher.com
• https://twitter.com/BretFisher
• http://bretfisher.com

My favorite command line options and best practices

• Bash/zsh completion
• use Tab to populate command line, narrows down options as you go, fills in container names, ID's, images, volumes. Huge time saver.

anaclair

What is Redis?
Redis is an open source, advanced in-memory key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.

######1. If you're running OS X, install redis in terminal using Homebrew : brew install redis

######2. Add the redis and hiredis gems to the project's Gemfile (remember to bundle install after you do this) :