use regular expressions : char in string « String « Ruby






use regular expressions


line = "A horse! this is a horse!"
puts line[/horse!$/] 

# The regular expression /horse!$/ asks, "Does the word horse, followed by ! come at the end of the line ($)?" 
# If this is true, this call returns horse!; nil if not.

 








Related examples in the same category

1.Character literal
2.Map chars in a string
3.specify a Fixnum (integer) as an index, it returns the decimal character code for the character found at the index location
4.Use string as array
5.Change a string with offset
6.taking the first letter from a string
7.Accessing Strings
8.If you add the chr method from the Integer class, you'll get the actual character:
9.use an offset and length (two Fixnums) to tell [] the index location where you want to start, and then how many characters you want to retrieve
10.Enter a range to grab a range of characters.
11.Adding another argument, a Fixnum, returns that portion of the matched data, starting at 0 in this instance
12.Concatenate string by string index
13.Loop through a string with while