INTRODUCTION TO RUBY PETER COOPER
|
|
|
- Cameron Richard
- 6 years ago
- Views:
Transcription
1 INTRODUCTION TO RUBY PETER COOPER If you get bored
2 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
3 Paul Graham
4 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
5 THE DOWNSIDES
6 THE DOWNSIDES SLOW
7 THE DOWNSIDES UNPOPULAR
8 Java C Visual Basic PHP C++ Perl Python C# Delphi Ruby JavaScript D PL/SQL SAS COBOL
9 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
10 Matz
11 Matz
12 Installing Ruby
13 Installing Ruby
14 IRB == Interactive RuBy
15 tryruby.hobix.com
16 IRB == Interactive RuBy
17 Expressions
18 Objects and Methods
19 >> this is a test.methods => ["%", "select", "[]=", "inspect", "<<", "each_byte", "method", "clone", "gsub", "casecmp", "public_methods", "to_str", "partition", "tr_s", "empty?", "instance_variable_defined?", "tr!", "gem", "freeze", "equal?", "rstrip", "*", "match", "grep", "chomp!", "+", "next!", "swapcase", "ljust", "to_i", "swapcase!", "respond_to?", "methods", "upto", "between?", "reject", "sum", "hex", "dup", "insert", "reverse!", "chop", "instance_variables", "delete", "dump", " id ", "tr_s!", "concat", "member?", "object_id", "succ", "find", "eql?", "require", "each_with_index", "strip!", "id", "rjust", "to_f", "s", "singleton_methods", "index", "collect", "oct", "all?", "slice", "taint", "length", "entries", "chomp", "instance_variable_get", "frozen?", "upcase", "sub!", "squeeze", "include?", "instance_of?", " s ", "upcase!", "crypt", "delete!", "detect", "to_a", "unpack", "zip", "lstrip!", "type", "center", "<", "instance_eval", "protected_methods", "map", "<=>", "rindex", "display", "any?", "==", ">", "split", "===", "strip", "size", "sort", "instance_variable_set", "gsub!", "count", "succ!", "downcase", "min", "ext", "kind_of?", "squeeze!", "downcase!", "intern", ">=", "next", "find_all", "to_s", "<=", "each_line", "each", "rstrip!", "class", "slice!", "hash", "sub", "private_methods", "tainted?", "replace", "inject", "=~", "tr", "reverse", "untaint", "nil?", "sort_by", "lstrip", "to_sym", "capitalize", "max", "chop!", "is_a?", "capitalize!", "scan", "[]"] Method List
20 fred = { :name => Fred, :age => 76, :occupation => :janitor } fred[:name] => Fred fred[:age] => 76 Hashes and Symbols
21 fred = { :name => Fred, :age => 76, :occupation => :janitor } fred[:name] => Fred fred[:age] => 76 people = [ { :name => Fred, :age => 76 }, { :name => Maggie, :age => 22 }, { :name => Laura, :age => 24 } ] people.size => 3 people[1] => { :name => Maggie, :age => 22 } Hashes and Symbols
22 names = %w(fred Bert Laura Gus Waldo) names.each { name puts name } Iterators
23 names = %w(fred Bert Laura Gus Waldo) names.each { name puts name } Fred Bert Laura Gus Waldo Iterators
24 names = %w(fred Bert Laura Gus Waldo) names.each do name puts name Iterators
25 1.upto(8) do i puts i Iterators
26 1.upto(8) do i puts i Iterators
27 [1, 2, 3, 4, 5].map do number number * 2 => [2, 4, 6, 8, 10] Iterators
28 [1, 2, 3, 4, 5].map do number number * 2 => [2, 4, 6, 8, 10] [1, 2, 3, 4, 5].map do number number.to_s * 2 => [ 11, 22, 33, 44, 55 ] Iterators
29 class Person me = Person.new me.class => Person you = Person.new you.class => Person Classes
30 class Person attr_accessor :name, :age me = Person.new me.name = Peter me.age = 26 fred = Person.new fred.name = Fred fred.age = 77 fred.age + me.age => 103 Classes
31 class Person def = Time.now.year - year def age me = Person.new me.year_born = 1981 me.age => 27 Classes
32 class Person def = Time.now.year - year def me = Person.new me.year_born = 1981 me.age => 27 Classes
33 class Person attr_reader :age def = Time.now.year - year me = Person.new me.year_born = 1981 me.age => 27 Classes
34 STOP
35 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
36 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
37 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
38 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
39 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
40 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
41 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
42 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
43 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
44 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
45 require 'rubygems' require 'png' def f(x, y) ( (x ^ y) & ((y - 350) >> 3) ) ** 2 canvas = PNG::Canvas.new(500, 500) 0.upto(499) do y 0.upto(499) do x if ((f(x, y) >> 12) & 1) == 1 canvas[x, y] = PNG::Color::Black else canvas[x, y] = PNG::Color::White png = PNG.new(canvas) png.save 'pattern.png'
46
47
48 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
49 Events
50 Events
51 User Groups
52 User Groups
53 Books
54 Books
55 Dave Thomas
56 Books
57 Books
58 Books
59 Books
60 Books
61 Books
62 Books
63 Training
64 Training
65 Blogs Screencasts Online Chat Web 2.0
66 rubyinside.com
67 rubycorner.com
68 peepcode.com
69 The People
70 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
71 RUBY GEMS
72 gem install rails
73 Installing a Gem
74 require 'rubygems' require 'chronic' Time.now #=> Tue Apr 01 11:30:00 CET 2008 Chronic.parse('tomorrow') #=> Wed Apr 02 12:00: Chronic.parse('last monday') #=> Mon Mar 31 12:00: Chronic.parse('next monday at 5pm') #=> Mon Apr 7 17:00: Using a Gem
75 1 doc = Hpricot( ) open(" 2 puts doc.search("p").size 3 ( doc / "#sidebar" ).remove 4 puts doc Hpricot
76 require 'gruff' g = Gruff::Line.new g.title = "My Fruity Graph" g.data("apples", [1, 2, 3, 4, 4, 3]) g.data("oranges", [4, 8, 7, 9, 8, 9]) g.data("peaches", [9, 9, 10, 8, 7, 9]) g.labels = {0 => '2003', 2 => '2005', 4 => '2007'} g.write('my_fruity_graph.png') Gruff
77
78 require 'classifier' filter = Classifier::Bayes.new(:spam, :ham) filter.train :spam, 'Free viagra!' filter.train :spam, 'Free credit card offer!' filter.train :spam, 'Enhance your anatomy' filter.train :ham, 'URGENT. Your server is down.' filter.train :ham, 'Your Amazon.com Order' filter.train :ham, ' from mom' 5 filter.classify('your Play.com Order') filter.classify('free love tonight') # => 'Ham' # => 'Spam' Classifier
79
80 Word stemming Image manipulation 3D graphics 2D graphics Physics Bioinformatics generation Bayes classification SQL generation Text language detection Language parsing Web application frameworks OS integration HTTP servers Other network daemons Credit card validation Payment gateway integration CAPTCHAs RSS feed processing Caching and memoization Graphing Web crawling Gem generation GUI widget library bridges Report generation Unicode handling Core Ruby improvements Text manipulation Content indexing Search Libraries
81 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
82 Rak
83 Sup
84 SwitchPipe
85 FreeRIDE
86 Mondrian IDE
87 RubyCocoa
88 GitNub
89 Captain Ruby example with the Gosu library
90 Captain Ruby example with the Gosu library
91 Chipmunk Physics
92 Ogre
93 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
94 MRI JRuby Iron Ruby Rubinius
95 THE ANECDOTE THE DOWNSIDES THE LANGUAGE THE COMMUNITY THE LIBRARIES THE APPLICATIONS THE IMPLEMENTATIONS THE QUESTIONS
96 QUESTIONS? If you get bored
97 THE END If you get bored
Ruby. A Very Brief Introduction. Andreas Klappenecker
Ruby A Very Brief Introduction Andreas Klappenecker Ruby Ruby is a very popular open source interpreted programming language. Ruby combines object-oriented programming with concepts from functional programming
Ruby. An Introduction
Ruby An Introduction What is Ruby? Ruby is small and intuitive Ruby gives you immediate feedback Ruby is free Ruby is portable Ruby is object-oriented Ruby is a scripting (?) language Ruby supports regular
Ruby Objects & Common Methods
Ruby Objects & Common Methods Ruby comes out of the box with tons of methods ready to use. So what can all these methods do?? OMG so many awesome things! These methods belong to specific objects, also
15.1 Origins and Uses of Ruby
15.1 Origins and Uses of Ruby - Designed by Yukihiro Matsumoto; released in 1996 - Use spread rapidly in Japan - Use is now growing in part because of its use in Rails - A pure object-oriented purely interpreted
Ruby: Useful Classes and Methods
Ruby: Useful Classes and Methods Computer Science and Engineering College of Engineering The Ohio State University Lecture 6 Ranges Instance of class (Range) indices = Range.new(0, 5) But literal syntax
A Look at Ruby. William Mitchell (whm) Mitchell Software Engineering (.com) TCS Developer s SIG February 6, 2007
A Look at Ruby William Mitchell (whm) Mitchell Software Engineering (.com) TCS Developer s SIG February 6, 2007 A Look at Ruby Slide 2 Introduction What is Ruby? Running Ruby Everything is an object Variables
INDEX. Symbols & Numbers
INDEX Symbols & Numbers & (ampersand), 166, 167 && (and operator), 85, 93 * (asterisk), 251 252, 260 *?, 260 @ (at sign), 23, 100 @@ (class variables), 23, 100 \ (line continuation character), 297 \B,
Ruby Topic Maps. Introduction to Ruby. Benjamin Bock.
Ruby Topic Maps http://rtm.rubyforge.org Introduction to Ruby Benjamin Bock 1 Calculator irb(main):001:0> 1+2 Type irb in your Terminal / Command / Shell window to start the interactive Ruby interpreter
Ruby on Rails TKK, Otto Hilska
Ruby on Rails intro @ TKK, 25.5.2009 Otto Hilska 1 Today s agenda 1. The Ruby programming language 2. Ruby on Rails framework 3. An example project 2 About me Started Nodeta Oy in 2004 10+ employees always
Learn. Rails 5.2. Accelerated Web Development with Ruby on Rails. Stefan Wintermeyer
Learn Rails 5.2 Accelerated Web Development with Ruby on Rails Stefan Wintermeyer Learn Rails 5.2 Accelerated Web Development with Ruby on Rails Stefan Wintermeyer Learn Rails 5.2: Accelerated Web Development
Python Tutorial. Day 1
Python Tutorial Day 1 1 Why Python high level language interpreted and interactive real data structures (structures, objects) object oriented all the way down rich library support 2 The First Program #!/usr/bin/env
About Ruby Comments Constants and variables Scopes Methods Ranges Arrays Operators Flow Control Iterators Math Library Date and Time Hashes Object
October 14,2014 About Ruby Comments Constants and variables Scopes Methods Ranges Arrays Operators Flow Control Iterators Math Library Date and Time Hashes Object and Classes Conclusion Hmw 2 created by
Your First Ruby Script
Learn Ruby in 50 pages Your First Ruby Script Step-By-Step Martin Miliauskas @mmiliauskas 1 Your First Ruby Script, Step-By-Step By Martin Miliauskas Published in 2013 by Martin Miliauskas On the web:
Introduction to Ruby. Part I
Introduction to Ruby Sebastian Fischer Part I Data Numbers, Strings, Ranges, Arrays/Hashes Control Branching, Loops, Iterators Numbers >> 42 => 42 >> -17 => -17 >> 1.23 => 1.23 >> 4.56e7 => 45600000.0
Ruby, with foxes. Ruby, cont d. Warning. why's (poignant) Guide to Ruby
O Ruby, cont d n O Ruby, with foxes n why's (poignant) Guide to Ruby Ruby explained through humorous and more or less irrelevant stories about foxes, elfs, cats and others Warning If I was put off Ruby
Software Engineering 2 (SWT2) Chapter 2: Introduction into Ruby on Rails
Software Engineering 2 (SWT2) Chapter 2: Introduction into Ruby on Rails Agenda 2 Ruby & Ruby on Rails What is Ruby on Rails? A few words about Ruby Core components RESTful architecture Active Record Your
Introduction to Python for Plone developers
Plone Conference, October 15, 2003 Introduction to Python for Plone developers Jim Roepcke Tyrell Software Corporation What we will learn Python language basics Where you can use Python in Plone Examples
Neo4j. Spatial. Peter Neubauer Neo Technology. GIS for the rest of us.
Neo4j Spatial GIS for the rest of us Peter Neubauer Neo Technology #neo4j @peterneubauer peter@neotechnology.com Data size NOSQL data models Key-value stores Bigtable clones Document databases Graph databases
Programming Ruby The Pragmatic Programmers Guide
Extracted from: Programming Ruby The Pragmatic Programmers Guide Second Edition This PDF file contains pages extracted from Programming Ruby, published by The Pragmatic Bookshelf. For more information,
Python - 2. Jim Eng
Python - 2 Jim Eng jimeng@umich.edu Lists Dictionaries Try... except Methods and Functions Classes and Objects Midterm Review Overview Patterns in programming - 1 Sequential steps Conditional steps Repeated
CS 390 Software Engineering Lecture 6 Ruby
CS 390 Software Engineering Lecture 6 Ruby References: Ruby in Twenty Minutes, available at https://www.ruby-lang.org/en/documentation/quickstart/. Outline Clone Ruby example git repository $ git clone
Boldface numbers indicate illustrations, code listings, and tables.
Index Boldface numbers indicate illustrations, code listings, and tables. A ActiveRecord, class in Ruby, 80-82, 84, 86, 88, 90 ActiveXMLService, class in Ruby, 80-82, 84, 90 Agile development, 109-110
Big Data, Complex Data
Big Data, Complex Data Managing Data and Complexity in Graph Databases Peter Neubauer Neo Technology #neo4j @peterneubauer peter@neotechnology.com Data size NOSQL data models Key-value stores Bigtable
Duration: Six Weeks Faculty : Mr Sai Kumar, Having 10+ Yrs Experience in IT
Duration: Six Weeks Faculty : Mr Sai Kumar, Having 10+ Yrs Experience in IT Online Classes are also available Recorded class will be given if you miss any day interview tips and quiz at end of every module
RubyConf China. Why Ruby? Yukihiro "Matz" Matsumoto. Copyright (c) 2008 Yukihiro "Matz" Matsumoto, No rights reserved
RubyConf China Why Ruby? Yukihiro "Matz" Matsumoto matz@ruby-lang.org Copyright (c) 2008 Yukihiro "Matz" Matsumoto, No rights reserved thou Moore s Law The number of Transistors in LSI Doubles Every 18
What is Ruby? CSc 372. Comparative Programming Languages. 27 : Ruby Introduction. Department of Computer Science University of Arizona
What is Ruby? CSc 372 Comparative Programming Languages 27 : Ruby Introduction Department of Computer Science University of Arizona Everything is an object. Everything can be changed: method can be added
Strings, Lists, and Sequences
Strings, Lists, and Sequences It turns out that strings are really a special kind of sequence, so these operations also apply to sequences! >>> [1,2] + [3,4] [1, 2, 3, 4] >>> [1,2]*3 [1, 2, 1, 2, 1, 2]
Chapter 6 part 1. Data Types. (updated based on 11th edition) ISBN
Chapter 6 part 1 Data Types (updated based on 11th edition) ISBN 0-321 49362-1 Chapter 6 Topics Introduction Primitive Data Types Character String Types User-Defined Ordinal Types Array Types Associative
Ruby Primer and Review for Developers
A PPENDIX A Ruby Primer and Review for Developers This T appendix is designed to act as both a Ruby primer and review, useful both to developers who want to brush up rapidly on their Ruby knowledge, and
Introductory Linux Course. Python I. Pavlin Mitev UPPMAX. Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Python I Pavlin Mitev UPPMAX Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University August, 2017 Outline Python introduction Python basics get started with
SI Networked Computing: Storage, Communication, and Processing, Winter 2009
University of Michigan Deep Blue deepblue.lib.umich.edu 2009-01 SI 502 - Networked Computing: Storage, Communication, and Processing, Winter 2009 Severance, Charles Severance, C. (2008, December 19). Networked
Programming: C ++ Programming : Programming Language For Beginners: LEARN IN A DAY! (Swift, Apps, Javascript, PHP, Python, Sql, HTML) By Os Swift
Programming: C ++ Programming : Programming Language For Beginners: LEARN IN A DAY! (Swift, Apps, Javascript, PHP, Python, Sql, HTML) By Os Swift If searching for the book Programming: C ++ Programming
One can evaluate any valid string as code at run time using eval.
Metaprogramming Metaprogramming means writing code that writes code. This allows us to modify the behavior of a program at run time. Ruby has several metaprogramming facilities. One can add create a new
Introductory Linux Course. Python I. Martin Dahlö UPPMAX. Author: Nina Fischer. Dept. for Cell and Molecular Biology, Uppsala University
Introductory Linux Course Martin Dahlö UPPMAX Author: Nina Fischer Dept. for Cell and Molecular Biology, Uppsala University August, 2018 Outline Python basics get started with Python Data types Control
Agile Web Development With Rails (4th Edition - Rails 3 & Ruby 1.9) By Sam Ruby
Agile Web Development With Rails (4th Edition - Rails 3 & Ruby 1.9) By Sam Ruby Agile Web Development with Rails 4 PDF Free Download, Both Rails 3 and 4, as well as Ruby 1.9 and 2.0, Agile Web Development
RUBY RUBY BY E X A MPLE
RUBY E XPLORING FUNCTIONAL CODE Baird s examples demonstrate key features of the language (such as inheritance, encapsulation, higherorder functions, and recursion), while simultaneously solving difficult
Introduction to Engineering Using Robotics Experiments. Dr. Yinong Chen
Introduction to Engineering Using Robotics Experiments Dr. Yinong Chen Outline Historical Perspective Programming Language Generations Programming Language Paradigms Imperative Programming Paradigm Writing
Ruby : A Dynamic Object Oriented Scripting Language
Ruby : A Dynamic Object Oriented Scripting Language Kuldeep Gharat kuldeep@cse.iitb.ac.in November 29, 2004 Kuldeep Gharat kuldeep@cse.iitb.ac.in () Ruby : A Dynamic Object Oriented Scripting Language
JRuby: Bringing Ruby to the JVM
JRuby: Bringing Ruby to the JVM Thomas E. Enebo Aandtech Inc. Charles Oliver Nutter Ventera Corp http://www.jruby.org TS-3059 2006 JavaOne SM Conference Session TS-3059 JRuby Presentation Goal Learn what
CSE 341, Autumn 2015, Ruby Introduction Summary
CSE 341, Autumn 2015, Ruby Introduction Summary Disclaimer: This lecture summary is not necessarily a complete substitute for atting class, reading the associated code, etc. It is designed to be a useful
Contents in Detail. Who This Book Is For... xx Using Ruby to Test Itself... xx Which Implementation of Ruby?... xxi Overview...
Contents in Detail Foreword by Aaron Patterson xv Acknowledgments xvii Introduction Who This Book Is For................................................ xx Using Ruby to Test Itself.... xx Which Implementation
CEU s (Continuing Education Units) 12 Hours (i.e. Mon Thurs 5 9PM or Sat Sun 8AM 5PM)
Course Name: Intro to Ruby Course Number: WITP 312 Credits: Classroom Hours: 1.2 CEU s (Continuing Education Units) 12 Hours (i.e. Mon Thurs 5 9PM or Sat Sun 8AM 5PM) Flex Training - Classroom and On-Line
Introduction to Ruby on Rails
Introduction to Ruby on Rails Software Engineering II WS 2016/17 Arian Treffer arian.treffer@hpi.de Prof. Plattner, Dr. Uflacker Enterprise Platform and Integration Concepts group Introduction to Ruby
Alleviate the Apprehension of Coding in Ruby
Alleviate the Apprehension of Coding in Ruby Chris Lasell Apple Peeler Pixar Animation Studios Install session materials Includes some example code & libraries ruby-jss and ruby gem dependencies into /Library/Ruby/Gems
Ruby assign variable if nil. Ruby assign variable if nil.zip
Ruby assign variable if nil Ruby assign variable if nil.zip Assign variable only if not nil (Ruby) and I want the method below to assign value to it only if. Email codedump link for Assign variable only
IPSL python tutorial: some exercises for beginners
1 of 9 10/22/2013 03:55 PM IPSL python tutorial: some exercises for beginners WARNING! WARNING! This is the FULL version of the tutorial (including the solutions) WARNING! Jean-Yves Peterschmitt - LSCE
file:///users/dave/tmp/rubyadv/html/metaprogramming.html
Page 1 of 13 Metaprogramming Object state behavior Me, Me, Me First, understand self self self is the current object Default receiver for method calls with no receiver Place where instance variables are
CSE 413 Spring Introduction to Ruby. Credit: Dan Grossman, CSE341
CSE 413 Spring 2011 Introduction to Ruby Credit: Dan Grossman, CSE341 Why? Because: Pure object-oriented language Interesting, not entirely obvious implications Interesting design decisions Type system,
Adding Static Typing to Ruby
Adding Static Typing to Ruby Jeff Foster University of Maryland, College Park Joint work with Mike Furr, David An, and Mike Hicks Introduction Scripting languages are extremely popular Lang Rating Lang
Intro to Ruby Scripting
Intro to Ruby Scripting http://phys.lsu.edu/~galanakis/resources/ruby_talk.pdf Dimitrios Galanakis Thursday April 15th A Tutorial for the LSU Center for Computation and Technology Why Scripting? Advantages
DOC DATABASES SQL THE COMPLETE REFERENCE DOWNLOAD
28 November, 2017 DOC DATABASES SQL THE COMPLETE REFERENCE DOWNLOAD Document Filetype: PDF 108.84 KB 0 DOC DATABASES SQL THE COMPLETE REFERENCE DOWNLOAD SQL: The Complete Reference, Third Edition shows
Introduction to Ruby on Rails
Introduction to Ruby on Rails Keven Richly keven.richly@hpi.de Software Engineering II WS 2017/18 Prof. Plattner, Dr. Uflacker Enterprise Platform and Integration Concepts group Introduction to Ruby on
Ruby for Rails by David A. Black Chapter 10
SAMPLE CHAPTER Ruby for Rails by David A. Black Chapter 10 Copyright 2006 Manning Publications PART I THE RUBY/RAILS LANDSCAPE...1 1 How Ruby works 3 2 How Rails works 33 3 Ruby-informed Rails development
Array variable in class ruby. Array variable in class ruby.zip
Array variable in class ruby Array variable in class ruby.zip Returns a new array. In the first form, if no arguments are sent, the new array will be empty. When a size and an optional obj are sent, an
Introduction to Ruby. SWEN-250 Personal Software Engineering
Introduction to Ruby SWEN-250 Personal Software Engineering A Bit of History Yukihiro "Matz'' Matsumoto Created a language he liked to work in. Been around since mid-90s. Caught on in early to mid 00s.
why you should use Ruby
LUKE KANIES why you should use Ruby Luke Kanies runs Reductive Labs (http://reductivelabs.com), a startup producing OSS software for centralized, automated server administration. He has been a UNIX sysadmin
Lecture 2. Object Orientation
Lecture 2 Object Orientation 1 Homework 0 Grades Homework 0 grades were returned earlier this week Any questions? 2 Homework 1 Homework 1 is due tonight at 11:59pm You will be graded on: Correctness: 15
Introduction CMSC 330: Organization of Programming Languages. Books on Ruby. Applications of Scripting Languages
Introduction CMSC 330: Organization of Programming Languages Ruby is an object-oriented, imperative scripting language I wanted a scripting language that was more powerful than Perl, and more object-oriented
Introduction to Ruby on Rails
Introduction to Ruby on Rails Ralf Teusner ralf.teusner@hpi.de Software Engineering II WS 2018/19 Prof. Plattner, Dr. Uflacker Enterprise Platform and Integration Concepts group Introduction to Ruby on
IronWASP (Iron Web application Advanced Security testing Platform)
IronWASP (Iron Web application Advanced Security testing Platform) 1. Introduction: IronWASP (Iron Web application Advanced Security testing Platform) is an open source system for web application vulnerability
Tutorial Point Servlets Pdf
Tutorial Servlets Pdf Free PDF ebook Download: Tutorial Servlets Pdf Download or Read Online ebook tutorial point servlets pdf in PDF Format From The Best User Guide Database on JSP, servlets, Struts,
The Joy of Software Development
The Joy of Software Development ABOUT ME Nemo @captn3m0 captnemo.in Work @Razorpay WHY? - Data Structures - Computer Architecture - Algorithms - Operating Systems - Software Eng - Computer Networks - Compiler
Are you using Ruby on Rails?
Are you using Ruby on Rails? Should you? Come have a seat, and we ll figure it out Learn how to create happy programmers, and 10 real world benefits to using Rails Talk begins at 5 PM Warning Warning I
Working with Sequences: Section 8.1 and 8.2. Bonita Sharif
Chapter 8 Working with Sequences: Strings and Lists Section 8.1 and 8.2 Bonita Sharif 1 Sequences A sequence is an object that consists of multiple data items These items are stored consecutively Examples
Strings. Chapter 6. Python for Everybody
Strings Chapter 6 Python for Everybody www.py4e.com String Data Type A string is a sequence of characters A string literal uses quotes 'Hello' or "Hello" For strings, + means concatenate When a string
The Care and Feeding of a MySQL Database for Linux Adminstrators. Dave Stokes MySQL Community Manager
The Care and Feeding of a MySQL Database for Linux Adminstrators Dave Stokes MySQL Community Manager David.Stokes@Oracle.com Simple Introduction This is a general introduction to running a MySQL database
The State of the DSL Art. Glenn Vanderburg Relevance, Inc. in Ruby
The State of the DSL Art Glenn Vanderburg Relevance, Inc. glenn@thinkrelevance.com in Ruby State of the Art Focus on internal DSLs Rubyists pushing the leading edge Ruby s features make it a good match
Get in Touch Module 1 - Core PHP XHTML
PHP/MYSQL (Basic + Advanced) Web Technologies Module 1 - Core PHP XHTML What is HTML? Use of HTML. Difference between HTML, XHTML and DHTML. Basic HTML tags. Creating Forms with HTML. Understanding Web
Lecture 2. Object Orientation 1 / 50
Lecture 2 Object Orientation 1 / 50 Homework 1 Homework 1 was due last night You will be graded on: Correctness: 15 points (passing all RSpec tests) Style: 5 points (having no Rubocop style offenses) Best
Practical Ruby Gems. David Berube
Practical Ruby Gems David Berube Practical Ruby Gems Copyright 2007 by David Berube All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or
Using Redis for data processing in a incident response environment.
Using Redis for data processing in a incident response environment. Practical examples and design patterns. Raphaël Vinot January 23, 2016 Devops & Incident Response Time constraints Similarity of the
Agile Web Development with Rails 5
Extracted from: Agile Web Development with Rails 5 This PDF file contains pages extracted from Agile Web Development with Rails 5, published by the Pragmatic Bookshelf. For more information or to purchase
DRb. RMI For Smart People
DRb RMI For Smart People Brian Sletten brian@bosatsu.net David Sletten david@bosatsu.net DRb Distributed Ruby Written by Masatoshi Seki Ruby Objects in one process can easily call Ruby Objects in another
A Tour of Ruby.... for Java programmers
A Tour of Ruby... for Java programmers Everything has a value Everything has a value, which I'll show in a comment (following Matsumoto): 1234 # => 1234 2 + 2 # => 4 'Hello' + 'World' # => 'HelloWorld'
Ruby on Rails. SITC Workshop Series American University of Nigeria FALL 2017
Ruby on Rails SITC Workshop Series American University of Nigeria FALL 2017 1 Evolution of Web Web 1.x Web 1.0: user interaction == server roundtrip Other than filling out form fields Every user interaction
CRAXweb: Web Testing and Attacks through QEMU in S2E. Shih-Kun Huang National Chiao Tung University Hsinchu, Taiwan
CRAXweb: Web Testing and Attacks through QEMU in S2E Shih-Kun Huang National Chiao Tung University Hsinchu, Taiwan skhuang@cs.nctu.edu.tw Motivation Symbolic Execution is effective to crash applications
Introduction. Primitive Data Types: Integer. Primitive Data Types. ICOM 4036 Programming Languages
ICOM 4036 Programming Languages Primitive Data Types Character String Types User-Defined Ordinal Types Array Types Associative Arrays Record Types Union Types Pointer and Reference Types Data Types This
Lecture 1. Basic Ruby 1 / 61
Lecture 1 Basic Ruby 1 / 61 What does this do? 3.times do print 'Hello, world!' end 2 / 61 Why Ruby? Optimized for programmer happiness Used for Ruby on Rails Very popular web framework 3 / 61 Course Policies
What is PERL?
Perl For Beginners What is PERL? Practical Extraction Reporting Language General-purpose programming language Creation of Larry Wall 1987 Maintained by a community of developers Free/Open Source www.cpan.org
CSc 372 Comparative Programming Languages
CSc 372 Comparative Programming Languages 26 : Ruby Classes Christian Collberg collberg+372@gmail.com Department of Computer Science University of Arizona Copyright c 2008 Christian Collberg [1] Inheritance
Chapter 6. Data Types
Chapter 6 Data Types Introduction A data type defines a collection of data objects and a set of predefined operations on those objects A descriptor is the collection of the attributes of a variable Copyright
Introduction. CSC 440: Software Engineering Slide #1
Introduction CSC 440: Software Engineering Slide #1 Topics 1. Course Goals 2. Programming: Small vs. Large 3. Challenges of Large Programs 4. Software Processes and Methods 5. Teams and Roles 6. Rails
Jaql. Kevin Beyer, Vuk Ercegovac, Eugene Shekita, Jun Rao, Ning Li, Sandeep Tata. IBM Almaden Research Center
Jaql Running Pipes in the Clouds Kevin Beyer, Vuk Ercegovac, Eugene Shekita, Jun Rao, Ning Li, Sandeep Tata IBM Almaden Research Center http://code.google.com/p/jaql/ 2009 IBM Corporation Motivating Scenarios
Beyond Blocks: Python Session #1
Beyond Blocks: Session #1 CS10 Spring 2013 Thursday, April 30, 2013 Michael Ball Beyond Blocks : : Session #1 by Michael Ball adapted from Glenn Sugden is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike
MRI Internals. Koichi Sasada.
MRI Internals Koichi Sasada ko1@heroku.com MRI Internals towards Ruby 3 Koichi Sasada ko1@heroku.com Today s talk Koichi is working on improving Ruby internals Introduce my ideas toward Ruby 3 Koichi Sasada
Python Objects. Charles Severance. Python for Everybody
Python Objects Charles Severance Python for Everybody www.py4e.com Warning This lecture is very much about definitions and mechanics for objects This lecture is a lot more about how it works and less about
Review of Lone Star Software Symposium: NFJS Peter Donton
Review of Lone Star Software Symposium: NFJS 2010 Peter Donton Variety of Sessions and Speakers 50 sessions on a wide range of topics presented by knowledgeable professionals in approachable and manageable
Ruby: Introduction, Basics
Ruby: Introduction, Basics Computer Science and Engineering College of Engineering The Ohio State University Lecture 3 Ruby vs Java: Similarities Imperative and object-oriented Classes and instances (ie
Ruby logistics. CSE341: Programming Languages Lecture 19 Introduction to Ruby and OOP. Ruby: Not our focus. Ruby: Our focus. A note on the homework
Ruby logistics CSE341: Programming Languages Lecture 19 Introduction to Ruby and OOP Dan Grossman Autumn 2018 Next two sections use the Ruby language http://www.ruby-lang.org/ Installation / basic usage
CS 5142 Scripting Languages
CS 5142 Scripting Languages 10/25/2012 Ruby 1 Outline Ruby Martin Hirzel 2 About Ruby Invented 1995 by Yokihiro Matz Matsumoto Influenced by SmallTalk Everything is an object (even e.g., integers) Blocks
Information Retrieval
Multimedia Computing: Algorithms, Systems, and Applications: Information Retrieval and Search Engine By Dr. Yu Cao Department of Computer Science The University of Massachusetts Lowell Lowell, MA 01854,
Symbols. & operator, 47 $& special variable, 76 * (splat) operator, 47
Index Symbols & operator, 47 $& special variable, 76 * (splat) operator, 47 A abstract syntax tree (AST), 23 29, 32 44. See also AST nodes algorithm constant lookup, 162, 163 164 Immix, 315 LALR parse,
Introduction to Python
Introduction to Python Michael Krisper Thomas Wurmitzer October 21, 2014 Michael Krisper, Thomas Wurmitzer Introduction to Python October 21, 2014 1 / 26 Schedule Tutorium I Dates & Deadlines Submission
pandas: Rich Data Analysis Tools for Quant Finance
pandas: Rich Data Analysis Tools for Quant Finance Wes McKinney April 24, 2012, QWAFAFEW Boston about me MIT 07 AQR Capital: 2007-2010 Global Macro and Credit Research WES MCKINNEY pandas: 2008 - Present
Ruby on Rails for PHP and Java Developers
Ruby on Rails for PHP and Java Developers Bearbeitet von Deepak Vohra 1. Auflage 2007. Taschenbuch. xvi, 394 S. Paperback ISBN 978 3 540 73144 3 Format (B x L): 15,5 x 23,5 cm Gewicht: 629 g Weitere Fachgebiete
Automation: Time to learn Ruby
Automation: Time to learn Ruby 15-441 Spring 2010, Recitation 5 Your Awesome TAs 2/12/10 15-441 Ruby Recitation 1 Why do we want a scripting language? Why not Assembly, C, C++, Java.. Much easier to program
Motivations. Luigi De Russis. Why Ruby (on Rails)?
Motivations Luigi De Russis 2 Disclaimer YES course-specific value open mind NO general value extremism 3 4 Course requirements Goal and context 5 Goal design and implement a Social Network site 6 credits
Arrays (Lists) # or, = ("first string", "2nd string", 123);
Arrays (Lists) An array is a sequence of scalars, indexed by position (0,1,2,...) The whole array is denoted by @array Individual array elements are denoted by $array[index] $#array gives the index of
Web Site Design and Development. CS 0134 Fall 2018 Tues and Thurs 1:00 2:15PM
Web Site Design and Development CS 0134 Fall 2018 Tues and Thurs 1:00 2:15PM By the end of this course you will be able to Design a static website from scratch Use HTML5 and CSS3 to build the site you
CS1 Lecture 22 Mar. 8, HW5 available due this Friday, 5pm
CS1 Lecture 22 Mar. 8, 2017 HW5 available due this Friday, 5pm CS1 Lecture 22 Mar. 8, 2017 HW5 available due this Friday, 5pm HW4 scores later today LAST TIME Tuples Zip (and a bit on iterators) Use of