Section 2.31. Removing Specific Characters

2.30. Removing Duplicate Characters

Runs of duplicate characters may be removed using the squeeze method:

s1 = "bookkeeper" s2 = s1.squeeze         # "bokeper" s3 = "Hello..." s4 = s3.squeeze         # "Helo." If a parameter is specified, only those characters will be squeezed. s5 = s3.squeeze(".")    # "Hello."

This parameter follows the same rules as the one for the count method (see the section 2.28, "Counting Characters in Strings" earlier in this chapter); that is, it understands the hyphen and the caret.

There is also a squeeze! method.

The Ruby Way(c) Solutions and Techniques in Ruby Programming
The Ruby Way, Second Edition: Solutions and Techniques in Ruby Programming (2nd Edition)
ISBN: 0672328844
EAN: 2147483647
Year: 2004
Pages: 269
Authors: Hal Fulton

Similar book on Amazon © 2008-2017.
If you may any questions please contact us: