Ruby on Rails
Ruby is an object oriented scripting language developed by Yukihiro Matsumoto in Japan. According to Matsumoto, the creator, Ruby was influenced by Perl, Smalltalk, Eiffel, ADA, BASIC, and Lisp. He wanted to design a language for increasing programmer productivity but with the idea that programming should be fun. The syntax of Ruby is very simple; it emphasizes the necessity for software to be understood by humans first and computers second. The language became popular in Japan and then gradually spread throughout the world around 2000. From that point on Ruby has grown in popularity, especially as a web application development framework when combined with Rails. As of September 2021, the latest stable of ruby is 3.0.2
Ruby is a general-purpose scripting language that has a friendly, natural language like syntax and doesn’t require colossally extra punctuation. As compared to a programming language like Java, Ruby is sleek and does not necessitate extensive codes to create basic structures such as data fields. Moreover, Ruby eases the task of using high-level abstractions such as meta-programming. Ruby is flexible, and being an interpreted language means that it is portable. Once an application has been developed in Ruby it will run equally well on Ruby supported platforms such as Linux, UNIX, Windows and Mac OS X.
An important feature of Ruby is its block support. A block is part of the Ruby method syntax. Like methods in other functions, Ruby Blocks are a way of binding functions to environments. This construct takes a parameter and returns a value. Blocks can be passed as optional arguments to methods and can be defined using parentheses or keywords. Yield is a Ruby keyword used inside methods for calling a block. Calling a block runs the code inside that block. Yield can pass any number of arguments to the block, and the block’s return value becomes the return value for yield.
Here is a summary of the important features of Ruby:
High-level – developer-friendly, with strong abstraction and use of natural or human language constructs;
Dynamic – data types are determined at the stage of program execution. This increases the speed of development;
Interpreted – Ruby code is processed by the interpreter at the time of execution without preliminary compilation. This provides platform independence and reduces the size of executable programs.
Block and Yield functionality – makes program flow easier to control than other languages
Ruby on Rails
There are also many web development shops that specialize in Rails, plus a substantial independent consultants, trainers, and contractors that develop everything from an elegant and sophisticated online store to complex applications that require mathematical operations. Some of the complex applications that can be developed using Ruby on Rails include stock market platforms with real-time data analysis, and for developing critical, elaborate SAAS (Software as a Service) solutions. Ruby developers find job opportunities in India, U.S.A, UK, Canada, Australia and many other countries.
Rails is designed on the basic MVC architecture. MVC or Modal View Controller is a software design pattern for developing web applications. MVC detaches the application logic from the user interface layer and assists the severance of concerns. The controller is the centre that receives the requests for the application and then performs with Modal to generate the required results which are then in turn displayed by View.
To make programmers job easier, Ruby leverages a wide set of third-party libraries, just like other languages. Nearly all of these libraries are released in the form of a gem, a packaged library or application that can be installed with a tool called RubyGems. RubyGems is a Ruby packaging system designed to facilitate the creation, sharing and installation of libraries, targeted primarily at Ruby software. Ruby comes with RubyGems by default since version 1.9, previous Ruby versions require RubyGems to be installed manually.
Ruby Koans, a testing-based program that runs through a variety of Ruby concepts in a trial and error fashion, is another important feature of Ruby.