Ruby Exception Tips, Tricks, and What You Need to Know

Ruby ExceptionRuby is a very popular computer programming language that first came onto the scene in the mid-1990s. Ruby on Rails is one of the most popular web program development applications, and Twitter itself was developed using Rails. As a computer programming language, Ruby differs from more traditional languages that are based in data input and logic decisions, as it’s actually controlled through the manipulation of “objects” created by writer of the program being created with Ruby.

Object-oriented programming languages such as Ruby are known as OOPs, and they’re generally more secure and stable than logic-based programs.  Udemy can also bring a hopeful Ruby programmer learn the basics of Ruby whether they are a beginner or they are already seasoned veteran through the use of practical Ruby training courses that cover the essentials of this programming language. However, if you want to learn something specific, such as the Ruby exception, you might need to narrow down your search for Ruby training to find the right kind for your needs.

What the Ruby Exception Means

Ruby’s objects are made up of classes, such as the class “Exception.” A Ruby Exception, when it appears in a program, indicates that an exceptional condition has appeared within the program written using Ruby. An “exceptional condition,” in the language of computer programming, generally means something has gone wrong with the program. Udemy.com Ruby and Ruby on Rails training courses teach hopeful programmers just what class an Exception, as well as many other Ruby classes, is and how they’re handled in a Ruby-based program. This material is often handled in more advanced Ruby programming training courses.

Why Ruby Exception is Beneficial to Programmers

Ruby is regarded as stable and secure due to the number of safeguards written into its code language, including how it shuts down programs when something wrong in a program written using Ruby occurs. By default, a Ruby-written program that goes wrong causes the class Exception to be raised or thrown and the program then ends or terminates. Ruby is popular as a programming language in part because it’s very flexible.

Even though Ruby’s class Exception terminates a program by default when something wrong occurs within it, the program’s writer can write in something called an “exception handler”. An exception handler is nothing more than a block of code that kicks into play, called “execution,” if an exception occurs when another block of code is executed or kicked into play.

While on its surface, Ruby’s objects and classes may appear opaque or even obscure, they’re really not, and Udemy offers several courses that allow programming students to quickly pick up not only an understanding of Ruby’s programming hierarchy but also learn how to write code to handle class Exception and almost any other Ruby class. It’s a lot to take in, but even students who are learning Ruby from scratch can get the hang of things pretty quickly.

“Raising an exception” in a Ruby program, a vital part of the whole Ruby class Exception world, is an integral part of the exception handling function that can be written as a block of code that will halt the default class Exception block of code from terminating a program when something goes wrong with the program’s code. Ruby’s class Exception, and the ability write an exception handler that can stop a program’s class Exception from terminating the program, is a real benefit found in Ruby and certain other OOPs. Because writing a program using Ruby is fairly easy, writing not only the class Exception but an exception handler is also easy.

Ruby Exception and Exception Handler

While leaving a Ruby program to utilize a default class Exception to deal with something going wrong in the program is perfectly fine, it’s generally recommended to write an exception handler instead. In Ruby parlance, the exception and execution, meaning the exception and the exception handler, should always go together, if only to keep a program with a problem that’s not really all that bad from constantly terminating. In Ruby, there are better ways to deal with the class Exception as well as something going wrong in the problems, which is another reason for why Ruby is popular, efficient, stable and secure.

By keeping a Ruby program from stopping, through use of an exception handler, the programmer is able to keep the program open and take appropriate corrective action, something not possible if the program is allowed to keep terminating. Ruby provides a very efficient method for dealing with exceptions when they arise. Here’s what the code, or syntax, would look like:

begin
# -
rescue OneTypeOfException
# -
rescue AnotherTypeOfException
# -
else
# Other exceptions
ensure
# Always will be executed
end

The example above basically encloses the Ruby code that might possibly cause a class Exception event to occur in what’s called, in Ruby, a “begin/end” block of code using “rescue clauses.” Class Exception and Ruby’s ability to allow a programmer to write an exception handler to meet an almost endless variation of problems that could occur provides the programmer a great deal of flexibility.

Ruby and its Ruby on Rails web application development program is extremely easy to learn and write, at least at the basic levels, in just a small amount of time. More advanced Ruby writing skills can also be picked up with just a small amount of effort. Udemy.com offers an A to Z Ruby and Ruby on Rails learning experience through the use of its blogs, tutorials, and Ruby training courses. If you’ve decided that now is the time to finally learn coding and writing computer programs in an extremely popular computer programming language then visit Udemy and select the Ruby and Ruby on Rails courses of your choice.