Victor Cedeno vitoyayo

## postgres-brew.md

      
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                vitoyayo
                / postgres-brew.md
            
            
              Created
              January 27, 2021 12:01
                — forked from ibraheem4/postgres-brew.md
            
              
                Installing Postgres via Brew (OSX)
              
          
    Installing Postgres via Brew

Pre-Reqs

Brew Package Manager
In your command-line run the following commands:

brew doctor
brew update


## hash_recap.rb
h1 = Hash.new          # => {}
h2 = Hash.new("a")     # => {}
h3 = {}                # => {}
h4 = {abc: "def"}      # => {:abc=>"def"}
h5 = {:abc => "def"}   # => {:abc=>"def"}
h6 = {"abc" => "def"}  # => {"abc"=>"def"}

h1["abc"]  # => nil

h1.fetch("abc", "kitty")  # => "kitty"
	h1 = Hash.new # => {}
	h2 = Hash.new("a") # => {}
	h3 = {} # => {}
	h4 = {abc: "def"} # => {:abc=>"def"}
	h5 = {:abc => "def"} # => {:abc=>"def"}
	h6 = {"abc" => "def"} # => {"abc"=>"def"}

	h1["abc"] # => nil

	h1.fetch("abc", "kitty") # => "kitty"