PPT-Ruby Exceptions

and other languages So what about Ruby Exceptions are raised using the raise method of Kernel The rescue clause is used to handle exceptions Exceptions are instances of the Exception. Staining total protein before specific protein de tection techniques provides an assessment of protein transfer efficiency and makes it possible to detect contaminating proteins in the sample and to compare the sample with molecular weight standards 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. and other languages… . Method invocation. puts “yes” . // global, method of Kernel. Math.sqrt. . 2. // object Math, method . sqrt. message.length. . // object message, method length, no . args. 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. Rebecca Crabb and Blaine . Stancill. Ruby. Open-Source Programming Language. Created by Yukihiro Matsumoto. Blended parts of other languages. “I wanted a scripting language that was more powerful than Perl and more object-oriented than Python”. 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 . 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.. lexical representations: . a . variationist. perspective . Gregory R. Guy. phonoLAM. group. July 2013. The problem of lexical scope. Some phonological generalizations are valid . only for . a subset of the lexicon . a quick review… . What happened before exceptions?. must remember to check return value. OR, must pass label/exception handler to every function. Caller. Function. return status. Caller. Function. label to subprogram. Ruby on Rails is a server side backend platform that uses CSS, JavaScript and HTML and combines all of these with Ruby language to create web apps and web servers. At ARKA, we understand the value of Ruby on Rails and providing a lot ROR Web Development advantages. In this Infograph one can know what are the pros and cons of ROR. https://www.arkasoftwares.com/rubyonrails-development.html Ronald L. Ramos. What is Ruby?. Ruby is a scripting language designed by Yukihiro Matsumoto, also known as . Matz. . It runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.. 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 . 1. Murphy’s Law. Anything that can go wrong will go wrong. Lesson 14 -- Exceptions. 2. Exceptions. Allow you to deal with the things that go wrong:. Indicate that something unexpected has occurred or been detected. 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.