Watch out! This tutorial is over 9 years old. Please keep this in mind as some code snippets provided may no longer work or need modification to work on current systems.
Tutorial Difficulty Level Last week we had a quick look at Strings in Ruby. Now let’s look at some more advanced sting operations.
s = "Hi there. How are you?"
print s.length, " [" + s + "]\n"
# Selecting a character in a string gives an integer ascii code.
print s[4], "\n"
printf("%c\n", s[4])
# The [n,l] substring gives the starting position and length. The [n..m]
# form gives a range of positions, inclusive.
print "[" + s[4,4] + "] [" + s[6..15] + "]\n"
print "Wow " * 3, "\n"
print s.index("there"), " ", s.index("How"), " ", s.index("bogus"), "\n"
print s.reverse, "\n"
