Ruby Toolbox

rubytoolbox.txt

Ruby Version Manager
rvm list           # - View available ruby versions
rvm use 2.3.0      # - Use version 2.3.0 (if installed)
rvm install 2.3.0  # - Install version 2.3.0 (if not installed)
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String methods
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"hello".capitalize # => "Hello"
"nxte dxlo".gsub('x','a') # => "nate dalo"
"a".succ # => "b"
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Array methods
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[1,2,3].inject(:+) # => 6
[1,2,3].map(&:to_s) # => ["1", "2", "3"]
[1,2,3,[4,5,6]].flatten # => [1, 2, 3, 4, 5, 6]