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Ruby. Ruby was created in 1995 by Yukihiro Matsumoto. It was designed to be fun and productive to write, with the needs of coders – rather than computers – in mind. Ruby is a high-level interpreted language that’s gained popularity on the web through the Ruby on Rails framework.


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Ruby (programming language) - Wikipedia


code language ruby
Ruby is an interpreted object-oriented programming language often used for web development. It also offers many scripting features to process plain text and serialized files, or manage system tasks. It is simple, straightforward, and extensible. Some C compiler flags may be added by default.
Ruby vs Python: What Should I learn? Which language is more fun to learn or to teach? I think that Ruby is a more enjoyable language, at least from a mentor perspective. Mostly that’s just because for people going from beginner to picking up a language it’s by far one of the friendliest. It’s just so easy to see how it goes from English.

code language ruby Not to be confused with.
Ruby :,Yukihiro Matsumoto, et al.
First appeared 1995 ; 24 years ago 1995 2.
It was designed and developed in the mid-1990s by in.
It supports multipleincluding, and.
According to the creator, Ruby was influenced by, and.
In a 1999 post to the ruby-talk mailing list, he describes some of his early ideas about the language: I was talking with my colleague about the possibility of an object-oriented scripting language.
I knew Perl Perl4, not Perl5but I didn't like it really, because it had the smell of a it still has.
The object-oriented language seemed very promising.
But I didn't like it, because I didn't think it was a true object-oriented language — OO features appeared to be add-on to the language.
As a language maniac and OO fan for 15 years, I really wanted a genuine object-oriented, easy-to-use scripting language.
I looked for but couldn't find one.
So I decided to make it.
Matsumoto describes the design of Ruby as being like a simple language at its core, with an object system like that of Smalltalk, blocks inspired byand practical utility like that of Perl.
Initially two names were proposed: "" and "".
Matsumoto chose the latter in a later e-mail to Ishitsuka.
Matsumoto later noted a factor in choosing the name "Ruby" — it was the of one of his colleagues.
Subsequently, three more versions of Ruby were released in two days.
The release coincided with the launch of the ruby-list mailing list, which was the first mailing list for the new language.
Already present at this stage of development were many of the features familiar in later releases of Ruby, including design, with inheritance,and.
In the same year, Matsumoto was hired by netlab.
In 1998, the Ruby Application Archive was launched by Matsumoto, along with a simple English-language homepage for Ruby.
In 1999, the first English language mailing list ruby-talk began, which signaled a growing interest in the language outside Japan.
It would be followed in the early 2000s by around 20 books on Ruby published in Japanese.
By 2000, Ruby was more popular than Python in Japan.
In September 2000, the first English language book was printed, which was later freely released to the public, further widening the adoption of Ruby amongst English speakers.
In early 2002, the English-language ruby-talk mailing list was receiving more messages than the Japanese-language ruby-list, demonstrating Ruby's increasing popularity in the non-Japanese speaking world.
Although deprecated, there is still code based on it.
The language specifications for Ruby were developed by the Open Standards Promotion Continue reading of the Information-Technology Promotion Agency a agency for submission to the JISC and then to the ISO.
It was accepted as a Japanese Industrial Standard JIS X 3017 in 2011 and an international standard in 2012.
Around 2005, interest in the Ruby language surged in tandem witha written in Ruby.
Rails is frequently credited with increasing awareness of Ruby.
Effective with Ruby 1.
Users are advised to upgrade to a more recent version.
As of the official 2.
It has been obsolete since February 22, 2016, and it will no longer receive bug and security fixes.
Users are advised to upgrade to a more recent version.
The release includes speed-ups, bugfixes, and library updates.
Reserved for special events.
MAJOR: Increased when you make incompatible API changes.
MINOR: increased every Christmas, may be API incompatible.
MINOR: increased when you add functionality in a backwards-compatible manner.
TEENY: security or bug fix which maintains API compatibility.
May be increased more than 10 such as 2.
PATCH: increased when you make backwards-compatible bug fixes.
PATCH: number of commits since last MINOR release will be reset at 0 when releasing MINOR.
PATCH format, not available at Ruby.
Users are advised to upgrade to a more recent version.
The release includes speed-ups, bugfixes, and library updates and removes some deprecated APIs.
Most notably, Ruby 2.
It also contains experimental support for using 2 with system and spawnand added support for the 7.
PowerPC64 performance Since version 2.
At a Google Tech Talk in 2008 Matsumoto further stated, "I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy.
That is the primary purpose of Ruby language.
They think, "By doing this, the machine will run fast.
By doing this, the machine will run more effectively.
By doing this, the machine will something something something.
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.
pokemon ruby pokemon codes is said to follow the POLAmeaning that the language should behave in such a way as to minimize confusion for experienced users.
Matsumoto has said his primary design goal was to make a language that he himself enjoyed using, by minimizing programmer work and possible confusion.
He has said that he had not applied the principle of least astonishment to the design of Ruby, but nevertheless the phrase has come to be closely associated with the Ruby programming language.
The phrase has itself been a source of surprise, as novice users may take it to mean that Ruby's behaviors try to closely match behaviors familiar from other languages.
In a May 2005 discussion on the newsgroup comp.
If that personal standard remains consistent, there would be few surprises for those familiar with the standard.
Matsumoto defined it this way in an interview: Everyone has an individual background.
Someone may come from Python, someone else may come from Perl, and they may be surprised by different aspects of the language.
Then they come up to me and say, 'I was surprised by this feature of the language, so Ruby violates the principle of least surprise.
The principle of least surprise is not for you only.
The principle of least surprise means principle of least my surprise.
And it means the principle of least surprise after you learn Ruby very well.
For example, I was a C++ programmer before I started designing Ruby.
I programmed in C++ exclusively for two or three years.
And after two years of C++ programming, it still surprises me.
Variables always hold references to objects.
Every is a and methods are always called on an object.
Methods defined at the top level scope become methods of the Object class.
Since this class is an ancestor of every other class, such methods can be called on any object.
They are also visible in all scopes, effectively serving as "global" procedures.
Ruby supports withand singleton methods belonging to, and defined for, a single rather than being defined on the class.
Though Ruby does not supportclasses can code language ruby as mixins.
It has support forandas well as support for interpreter-based.
Ruby featuresand supports.
According to the Ruby FAQ, the code language ruby is similar to and the semantics are similar tobut it differs greatly from.
Class and method definitions are signaled by keywords, whereas code blocks can be both code language ruby by keywords or braces.
In contrast to Perl, variables are not obligatorily prefixed with a.
When used, the sigil changes the semantics of scope of the variable.
For practical purposes there is no distinction between and.
Line breaks are significant and taken as the end of a statement; a semicolon may be equivalently used.
Unlike Python, indentation is not significant.
Unlike the "getter" and "setter" methods of other languages like oraccessor methods in Ruby can be created with a single line of code via ; however, accessor methods can also be created in the traditional fashion of C++ and Java.
As invocation of these methods does not require the use of parentheses, it is trivial here change an instance variable into a full function, without modifying a single line of calling code or having to do any refactoring achieving similar functionality to and property members.
Python's property descriptors are similar, but come with a tradeoff in the development process.
If one begins in Python by using a publicly exposed instance variable, and later changes the code language ruby to use a private instance variable exposed through a property descriptor, code internal to the class may need to be adjusted to use here private variable rather than the public property.
This is in keeping with the idea that in Ruby, one never directly accesses the internal members of a class from outside the class; rather, one passes a message to the class and receives a response.
See the section below for samples of code demonstrating Ruby syntax.
Unsourced material may be challenged and.
January 2014 The following examples can be run in a Ruby shell such asor saved in a file and run from the command line by typing ruby.
Classic example: Everything, including a literal, is an object, so this works: - 199.
Many built-in methods have such arguments: File.
Parameter-passing a block to be a : Code language ruby an object instance variable denoted with ' 'remember a block.
The inject method iterates over each member of a list, performing some function on it while retaining an aggregate.
This is analogous to the function in.
This returns 11, which then becomes sum on the next pass.
It is added to 3 to get 14, which is then added to 5 on the third pass, to finally return 19.
Using an enumeration and a block to square the numbers 1 to 10 using a range : 1.
The last evaluated statement in a method is its return value, allowing the omission code language ruby an explicit return statement.
This applies to all classes, including the standard, built-in classes.
All that is needed to do is open up a class definition for an existing class, and the new contents specified will be added to the existing contents.
If performed recklessly, the practice can lead to both behavior collisions with subsequent unexpected results and code scalability problems.
Such a clause can catch exceptions that inherit from StandardError.
Other flow control keywords that can be used when handling exceptions are else and ensure: begin do something rescue handle exception else do this if no exception was raised ensure do this whether or not an continue reading was raised end It is a excited ruby slippers slot machine big win what mistake to attempt to catch all exceptions with a simple rescue clause.
To catch all exceptions one must write: begin do something rescue Exception Exception handling code here.
Don't write only "rescue"; that only catches StandardError, a subclass of Exception.
Unsourced material may be challenged and removed.
Find sources: — · · · · January 2014 Ruby code can programmatically modify, ataspects of its own structure that would be fixed in more rigid languages, such as class and method definitions.
This sort of can be used to write more concise code and effectively extend the language.
For example, the following Ruby code generates new methods for the built-in String class, based on a list of colors.
The methods wrap the contents of the string with an HTML tag styled with the respective color.
This implementation is written in C and uses its own Ruby-specific.
The code language ruby and retired Ruby 1.
Starting with Ruby 1.
Each takes a different approach, with JRuby and Rubinius visit web page and mruby also providing.
JRuby currently targets Ruby 2.
The bytecode compiler and most core classes are written in pure Ruby.
Rubinius currently targets Ruby 2.
It can be used for a large speedup over e.
Ruby or JRuby implementations may only be useful for numerical code.
The point when a particular implementation achieves this goal is called "the Rails singularity".
The reference implementation, JRuby, and Rubinius are all able to run Rails unmodified in a production environment.
By 1999, Ruby was known to work across many differentincluding NEWS-OS, SunOS,,BSD, Linux,and.
Modern Ruby versions and implementations are available on many operating systems, such as Linux, BSD, Solaris, AIX,Windows,BeOS, and.
A Ruby package is called a "gem" and can easily be installed via the command line.
Most gems are libraries, though a few exist that are applications, such as.
There are over 10,000 Ruby gems hosted on.
Many new and existing Ruby libraries are hosted ona service that offers repository hosting for.
The Ruby Application Archive, which hosted applications, documentation, and libraries for Ruby programming, was maintained until 2013, when its function was transferred to RubyGems.
Retrieved 2 May 2015.
Retrieved 2 May 2015.
Retrieved 2 May 2015.
Beginning Ruby: From Novice to Professional.
Beginning from Novice to Professional 2nd ed.
To a lesser extent, Python, LISP, Eiffel, Ada, and C++ have also influenced Ruby.
Practical JRuby on Rails Web 2.
It draws primarily on features from Perl, Smalltalk, Python, Lisp, Dylan, and CLU.
Archived from on 2011-07-21.
Retrieved 6 October 2018.
Neon Design Technology, Inc.
The Swift language is the product of tireless effort from a team of language experts, documentation gurus, compiler optimization ninjas, and an incredibly important internal dogfooding group who provided feedback to help refine and battle-test ideas.
Of course, it also greatly benefited from the experiences hard-won by many other languages in the field, drawing ideas from Objective-C, Rust, Haskell, Ruby, Python, CCLU, and far too many others to list.
Retrieved 2 March 2014.
Retrieved 2 March 2014.
Retrieved April 10, 2012.
Retrieved April 10, 2012.
Archived from on 6 November 2015.
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Retrieved 2 May 2015.
Retrieved 2 May 2015.
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Retrieved 2 May 2015.
Retrieved 2 May 2015.
Retrieved 2 May 2015.
Retrieved February 20, 2013.
Retrieved February 20, 2013.
Retrieved 2 May 2015.
Retrieved December 26, 2013.
Retrieved December 27, 2013.
Retrieved 4 April 2017.
Retrieved January 4, 2015.
https://spin-slots-money.website/ruby/cheat-codes-pokemon-ruby-gameshark.html 2 May 2015.
Retrieved 12 July 2016.
Retrieved 12 July 2016.
Retrieved 12 July 2016.
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Archived from the original on 4 July 2017.
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Archived from on August 18, 2000.
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By using this site, you agree to the and.
Wikipedia® is a registered trademark of thea non-profit organization.


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Ruby vs Python: What Should I learn? Which language is more fun to learn or to teach? I think that Ruby is a more enjoyable language, at least from a mentor perspective. Mostly that’s just because for people going from beginner to picking up a language it’s by far one of the friendliest. It’s just so easy to see how it goes from English.


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