Ruby : A programmers best freind

[yogeshwartyagi]

Wondering why Ruby is so popular? Its fans call it a beautiful, artful language. And yet, they say it’s handy and practical. What gives?

 

The Ideals of Ruby’s Creator

 

Ruby is a language of careful balance. Its creator, Yukihiro “matz” Matsumoto, blended parts of his favorite languages (Perl, Smalltalk, Eiffel, Ada, and Lisp) to form a new language that balanced functional programming with imperative programming.

 

He has often said that he is “trying to make Ruby natural, not simple,” in a way that mirrors life.

 

Building on this, he adds:

 

Ruby is simple in appearance, but is very complex inside, just like our human body.

 

About Ruby’s Growth

Since its public release in 1995, Ruby has drawn devoted coders worldwide. In 2006, Ruby achieved mass acceptance. With active user groups formed in the world’s major cities and Ruby-related conferences filled to capacity.

 

The TIOBE index, which measures the growth of programming languages, ranks Ruby as #9 among programming languages worldwide. Much of the growth is attributed to the popularity of software written in Ruby, particularly the Ruby on Rails web framework2.

 

Ruby is also totally free. Not only free of charge, but also free to use, copy, modify, and distribute.

 

 

 

Seeing Everything as an Object

Initially, Matz looked at other languages to find an ideal syntax. Recalling his search, he said, “I wanted a scripting language that was more powerful than Perl, and more object-oriented than Python3.”

 

In Ruby, everything is an object. Every bit of information and code can be given their own properties and actions. Object-oriented programming calls properties by the name instance variables and actions are known as methods. Ruby’s pure object-oriented approach is most commonly demonstrated by a bit of code which applies an action to a number.

 

Ruby’s Flexibility

Ruby is seen as a flexible language, since it allows its users to freely alter its parts. Essential parts of Ruby can be removed or redefined, at will. Existing parts can be added upon. Ruby tries not to restrict the coder.

 

Blocks, a Truly Expressive Feature

Ruby’s block are also seen as a source of great flexibility. A programmer can attach a closure to any method, describing how that method should act. The closure is called a block and has become one of the most popular features for newcomers to Ruby from other imperative languages like PHP or Visual Basic.

 

Ruby and the Mixin

Unlike many object-oriented languages, Ruby features single inheritance only, on purpose. But Ruby knows the concept of modules (called Categories in Objective-C). Modules are collections of methods.

 

Classes can mixin a module and receive all its methods for free. For example, any class which implements the each method can mixin the Enumerable module, which adds a pile of methods that use each for looping.

 

Ruby’s Visual Appearance

While Ruby often uses very limited punctuation and usually prefers English keywords, some punctuation is used to decorate Ruby. Ruby needs no variable declarations. It uses simple naming conventions to denote the scope of variables.

 

var could be a local variable.

@var is an instance variable.

$var is a global variable.

These sigils enhance readability by allowing the programmer to easily identify the roles of each variable. It also becomes unnecessary to use a tiresome self. prepended to every instance member.

 

Beyond the Basics

Ruby has a wealth of other features, among which are the following:

 

Ruby has exception handling features, like Java or Python, to make it easy to handle errors.

Ruby features a true mark-and-sweep garbage collector for all Ruby objects. No need to maintain reference counts in extension libraries. As Matz says, “This is better for your health.”

Writing C extensions in Ruby is easier than in Perl or Python, with a very elegant API for calling Ruby from C. This includes calls for embedding Ruby in software, for use as a scripting language. A SWIG interface is also available.

Ruby can load extension libraries dynamically if an OS allows.

Ruby features OS independent threading. Thus, for all platforms on which Ruby runs, you also have multithreading, regardless of if the OS supports it or not, even on MS-DOS!

Ruby is highly portable: it is developed mostly on GNU/Linux, but works on many types of UNIX, Mac OS X, Windows 95/98/Me/NT/2000/XP, DOS, BeOS, OS/2, etc.

[pepy]

one thing that i like from this programming language is the philosophy of the creator, since many programming language focus to machine but this one focus to us, human(in this case the programmer), look at Yukihiro Matzumoto quote

 

Often people, especially computer engineers, focus on the machines. They think, "By doing this, the machine will run faster. By doing this, the machine will run more effectively. By doing this, the machine will something something something." They are focusing on machines. But in fact we need to focus on humans, on how humans care about doing programming or operating the application of the machines. We are the masters. They are the slaves

 

and other thing that i like from this programming language is it supported more than one program view, it supported more than one programming paradigm

[yogeshwartyagi]

Yeah the creatros considered the human ease in mind while creating it - also they took lesson from other languages what the limitations they had and came with a true portable language that allow you multithreading even on plateforms that do not suport multi-threading.

[kivanger]

I've heard this type of program, and it seems like my kind of program in the country is not very well known because of the use is normally made ​​in the microsoft visual basic. but thanks you for the information that you share inhere