use regular expressions : char in string « String « Ruby

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Ruby » String » char in string

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

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