BasicsPlaying with strings > "Jimmy".reverse => ymmiJ > "Jimmy".length => 5 > "Jimmy" * 5 => "JimmyJimmyJimmyJimmyJimmy" > 40.to_s.reverse => "04" Useful functionsstrings: to_sintegers: to_

Quick start #!/usr/bin/env python print "Hello World" Listsa = [1,2,3,4,5,6] a[0:1] # first element a[2:4] # slice mid elements, second parameter is

Notes on YAML: styles, mappings, sequences, scalars, tags, anchors and use cases.