This page contains automated test results for code from O'Reilly's Ruby Cookbook. If this code looks interesting or useful, you might want to buy the whole book.

Reversing a String by Words or Characters
CodeExpectedActual
s = ".sdrawkcab si gnirts sihT"
s.reverse
 "This string is backwards." "This string is backwards." 
s
 ".sdrawkcab si gnirts sihT" ".sdrawkcab si gnirts sihT" 
s.reverse!
 "This string is backwards." "This string is backwards." 
s
 "This string is backwards." "This string is backwards." 
s = "order. wrong the in are words These"
s.split(/(\s+)/).reverse!.join('')
 "These words are in the wrong order." "These words are in the wrong order." 
s.split(/\b/).reverse!.join('')
 "These words are in the wrong. order" "These words are in the wrong. order" 
"Three little  words".split(/\s+/)
 ["Three", "little", "words"] ["Three", "little", "words"] 
"Three little  words".split(/(\s+)/)
["Three", " ", "little", " ", "words"] ["Three", " ", "little", " ", "words"]