Ruby is a popular computer programming language that first arose in the mid-1990s. Composed of Ruby and the Ruby on Rails web development application upon which social media sites such as Twitter are based upon, Ruby is extremely stable and possesses a high degree of security. Unlike more traditional and older computer programming languages that rely on input of data and then a series of logic decisions to deliver information and perform tasks, Ruby is an OOP or “object-oriented program.” The beauty of OOP computer program languages is that they give programmers a high degree of control over the activities of the programs they write using Ruby and other OOPs, not to mention that Ruby itself is extremely easy to learn to write – so easy, in fact, that you can learn Ruby right here on Udemy.
Ruby programs are controlled by the manipulation of what are known as “objects” that are written in easy-to-understand syntax, or language. The popular programming language is also made even easier to learn and to later write programs in through the use of a large standard library of classes, including its logger class. Udemy also offers several different types of Ruby tutorials that make it easy to learn Ruby, which can even take you beyond the basics with courses that include advanced Ruby programming.
Ruby Logger and Its Uses
In the Ruby programming language, helpful methods or ways of performing tasks make up what are called classes, many of which are found in a library of prewritten classes available to any programmer needing them. The standard library in Ruby is included with Ruby’s code, which is “open source” or available for the use of any programmer wanting to use it to writer programs or even improve or modify the Ruby code package with which he’s working.
The Ruby logger class is an important part of the programming language’s standard library. Udemy and its various Ruby courses take a Ruby programming student through the concept of Ruby’s standard library of classes and demonstrate how those classes can be used to greatly shorten the time needed to write even a complex Ruby-based computer program. Check out some of our expert courses on Ruby programming to learn more.
Basically, Ruby Logger helps the programmer developing a program write messages to a log or file. Generally, computer programming languages, including object-oriented programming languages, create and utilize files, as any casual user of Windows or Mac operating systems knows. Files in computer programming languages are somewhat different than the “files” found in a computer’s operating system, but also similar in many respects.
When programmers write code, such as code using Ruby, they assume that any messages being generated by the programs they’re writing will of course be logged. Messages sent to a programmer’s computer monitor send a variety of warnings and advisories as well as other pieces of data that can help the programmer avoid creation of bad code, commonly called “defaults” or just “bugs.” If bad code is inadvertently created by the programmer writing a program using Ruby she can go back through the program’s event logs and review for missteps.
Once Ruby Logger is taken from the programming language’s standard library and written it into the program’s coding stream, it’s possible to review for possible missteps using the DEBUG level of Logger, which is especially useful for a step-by-step diagnosis of particularly complex tasks the particular Ruby program is being asked to perform. Other levels in Ruby Logger pertinent to diagnosis and repair of bad code or problems with a Ruby-based program include ERROR as well as FATAL, a kind of last-ditch means of fixing a problem in the program’s code before it crashes.
Ruby Logger and Starting Log Files Over
Another useful aspect of Ruby’s Logger class is that a programmer can have it rotate or replace the particular program’s log file when it becomes to too large or after a predetermined amount of time has passed. Here’s what a sample of the Ruby Logger class’s code might look like when it’s written by a programmer using the language to create a Ruby-based program:
require 'logger' # Keep data for the current month only Logger.new('this_month.log', 'monthly') # Keep data for today and the past 20 days. Logger.new('application.log', 20, 'daily') # Start the log over whenever the log exceeds 100 megabytes in size. Logger.new('application.log', 0, 100 * 1024 * 1024)
Ruby and Its Elegant Simplicity
Ruby is an elegantly simple and easily understandable coding language in which to write, as evidenced by the above example. As written, the Logger class above will start the log file over once its size becomes larger than 100 megabytes. The programmer is also able to go back into the Logger as needed to change its parameters. Ruby and its Logger program soon enough become second nature when learning programming through one of several different Udemy Ruby courses, including a complete Ruby mastery course for those who want a complete understanding of this type of programming.
Ruby is easy to use and just as easy to learn, and Udemy.com offers an A to Z, beginning to end, way of quickly learning Ruby and then writing an endless variety of computer programs with it. Ruby and Ruby on Rails programmers and web application developers are also in great demand. It could eventually prove very useful to one’s computer programming career aspirations to learn how to write code with Ruby.
Udemy makes it exceedingly easy to learn everything you need to know about Ruby and various other types of programming, so don’t waste time considering whether or not it’s the best option for you. Sign up for an Udemy course to help you get started learning the basics of Ruby as soon as possible.