PPT-Learning Ruby

Regular Expressions Get at practice page by logging on to csilmusuedu and selecting PROGRAMMING LANGUAGESRegular Expressions Regular Expressions A regular expression is a special sequence of characters that helps you match or find other strings or sets of strings using a specialized syntax held in a pattern.  Slide . 1. Basic Ruby Syntax. sum = 0. i. = 1. while. . i. <= 10 . do. sum += . i. *. i. . i. = . i. + 1. end. puts "Sum of squares is #{sum}\n". Newline is statement separator. do ... end. Cutting through Conspiracies. November 22, 1963. JFK was in Dallas trying to get support for next year’s election.. Dallas had an unfriendly reputation towards politicians.. . Lee Harvey Oswald. Shown here in Oak Cliff, Texas.. Slide . 1. Basic Ruby Syntax. sum = 0. i. = 1. while. . i. <= 10 . do. sum += . i. *. i. . i. = . i. + 1. end. puts "Sum of squares is #{sum}\n". Newline is statement separator. do ... end. Also “open class”. and other languages… . Modules . A module is a named group of methods, constants, and class variables. All classes are modules. Modules are not classes. Can’t be instantiated. Walter M. Mulas. Messaggio di benvenuto con i metodi I/O (input/output). 1. Che cos’è Ruby?. Ruby. è un . linguaggio. di . scripting. completamente a . oggetti. . Nato nel . 1993. come progetto personale del . Rails. : An introduction - . Who. . am. I?. Maciej Mensfeld. Presented . b. y. :. . Maciej Mensfeld. RoR. : An introduction . maciej@mensfeld.pl. dev.mensfeld.pl. github.com. /. mensfeld. senior . Ruby Regular Expressions. Why Learn Regular Expressions?. RegEx. are part of many programmer’s tools. vi, . grep. , PHP, Perl. They provide powerful search (via pattern matching) capabilities. Simple . Write more understandable code in less lines. Free (Very open license). Extensible. Dynamic languages such as Ruby can be very productive in specific areas, such as prototyping, web development or for gluing various applications together.. |forBLOCK_VARinEXPRDOCOMPSTMTend|beginCOMPSTMT{rescue[ARGS]DOCOMPSTMT}[elseCOMPSTMT][ensureCOMPSTMT]end|classIDENTIFIER[IDENTIFIER]COMPSTMTend|moduleIDENTIFIERCOMPSTMTend|defFNAMEARGDECLCOMPSTMTend|de What is Ruby on Rails?. Ruby on Rails is an open source full-stack web framework.. It is an alternative to PHP/. MySQL. .. It can render templates, handle user authentication, has built-in database functionality, etc. By: Jenna VonAhnen. First African-american girl to go to all white southern school by herself.. Ruby Bridges at age 6 gets escorted in and out of William Franz elementary school in New Orleans by her mother and U.S. Federal Marshals. As she spends almost the whole year in a classroom alone with Mrs. Henry, the only teacher willing to teach Ruby she gets the education her mother believes she deserves. By Ruby attending an all white school, it hepled with continuing the Civil Rights Act.. Bridges . was born on September 8 in . Tylertown, . Mississippi 1954. . Ruby . had two . brothers and one sister. She had to share one bed with . her . brothers and . sister . Ruby . was . very poor . A business really is only as good as the people who work in it. And a business software application is certainly only as good as the people who create and maintain it. That means that any company trying to fill Ruby on Rails developer jobs needs to go about doing so with care.