String To Array Ruby Split

Unlike in c where single quotes denote a single character.

String to array ruby split. Testing in irb i get nomethoderror. Usr bin env ruby str foo bar baz puts str split. String objects in ruby have a method called split it is similar to the split function of perl it can cut up a string into pieces along a pre defined string or regex returning an array of smaller strings. If the delimiter passed to string split is a zero length string or regular expression then string split will act a bit differently.

I m trying to reverse words in an array of string variables but split doesn t seem to be working. In ruby single quotes around a string means that escape characters are not interpreted. So if you want to split on n you need to change your code to use double quotes split n. In this case n is actually equivalent to n.

A string object holds and manipulates an arbitrary sequence of bytes typically representing characters string objects may be created using string new or as literals. This essentially turns the string into an array of equal length containing only one character strings one for each character in the string. Values each do v number integer v display number if it is greater than or equal to 200. If an empty string is used as the separator the string is split between each character.

The split method does not change the original string. Private method split called for array which i m assuming has something to do with my program quietly doing nothing. Because of aliasing issues users of strings should be aware of the methods that modify the contents of a string object. Typically methods with names ending in modify their receiver while those without a return.

It will remove nothing at all from the original string and split on every character. Ruby program that uses split parses integers line 100 200 300 split on the comma char. Values line split parse each number in the result array.