Strings
Strings are probably the most commonly used data type in Ruby, and they have a powerful and wide-ranging API to prove it. Here are some of the most useful and most interesting String methods.
Finding Information about a String
The length of a string is accessible with the method String#length or String#size, which are aliases of each other. The length is in characters and is determined by the current encoding. You can get the length in bytes with the method String#bytesize. The method String#empty? returns true if the length of the string is zero.
If you want to know how many times a given character is used in a string, you can use String#count(*selectors). This works, as you probably expect, if you pass in a single character, but it ...
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