Pops last character off self and returns it, changing self : String class Extension « String « Ruby

Home
Ruby
1.ActiveRecord
2.Array
3.CGI
4.Class
5.Collections
6.Database
7.Date
8.Design Patterns
9.Development
10.File Directory
11.GUI
12.Hash
13.Language Basics
14.Method
15.Network
16.Number
17.Rails
18.Range
19.Reflection
20.Statement
21.String
22.Threads
23.Time
24.Tk
25.Unit Test
26.Windows Platform
27.XML
Ruby » String » String class Extension 
Pops last character off self and returns it, changing self


class String
  def pop
    return nil if self.empty?
    item=self[-1]
    self.chop!
    return nil if item.nil?
    item.chr
  end

end

a = "this is a test"

puts a.pop

 
Related examples in the same category
1.write an extension to the String class to provide it
2.Add method to system type
3.Processing a String One Word at a Time by adding a method to string class
4.Replacing Multiple Patterns in a Single Pass
5.Writing an Inherited Class
6.Override the method from String Class
7.Regular expression based comparison
8.String translation
9.convert string to binary number
10.Removes first character from self and returns it, changing self
11.Adds last character of provided string to front of self
12.Pushes first character of provided string onto end of self
13.Rotate left
14.Rotate right
15.Shifts first word off of self and returns; changes self
16.Adds provided string to front of self
17.Pops and returns last word off self; changes self
18.Pushes provided string onto end of self
19.Get acronym
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.