By Peter Cooper
Based at the best-selling first variation, Beginning Ruby: From beginner to specialist, moment Edition is the best consultant for all types of reader who desires to study Ruby from the floor up.
the recent variation of this e-book offers an identical very good advent to Ruby because the first variation plus updates for the most recent model of Ruby, together with the addition of the Sinatra and Ramaze internet program frameworks and a bankruptcy on GUI improvement so builders can benefit from those new tendencies.
Beginning Ruby begins through explaining the foundations at the back of object-oriented programming and inside of a couple of chapters builds towards making a complete Ruby program. through the tip of the ebook, as well as in-depth wisdom of Ruby, you'll even have easy knowing of many ancillary applied sciences corresponding to SQL, XML, net frameworks, and networking.
* Introduces readers to the Ruby programming language
* Takes readers from easy programming talents to net improvement with subject matters like Ruby-based frameworks and GUI programming
* Covers many ancillary applied sciences so that it will supply a broader photograph (e.g., databases, XML, community daemons)
<h3>What you'll learn</h3> * comprehend the fundamentals of Ruby and object-oriented development blocks.
* paintings with Ruby libraries, gem stones, and documentation.
* paintings with records and databases.
* Write and install Ruby applications.
* discover Ruby internet frameworks and elements of community programming with Ruby.
* boost computing device and GUI functions with Ruby.
<h3>Who is that this booklet for?</h3>
Beginning programmers, programmers new to Ruby, and net builders attracted to realizing the rules of the language
Read or Download Beginning Ruby: From Novice to Professional (2nd Edition) PDF
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Additional info for Beginning Ruby: From Novice to Professional (2nd Edition)
What about if you ask a number what its class is? class Fixnum The number 2 is an object of the Fixnum class. This means that all Ruby has to do is implement the logic and code for adding numbers together in the Fixnum class, much like you created the bark method for your Dog class, and then Ruby will know how to add any two numbers together! Better than that, though, is that you can then add your own methods to the Fixnum class and process numbers in any way you see fit. ) whose methods are made available in every class and scope throughout Ruby.
Therefore, it’s necessary for you to know how to access it and run programs. If you type c:\ruby\bin\irb at this prompt and press Enter, you should see something like the following: irb(main):001:0> If you see the preceding line, everything is set up correctly, and you can type exit and press Enter to be returned to the command prompt. nTip Consider adding c:\ruby\bin to your system path so you can launch irb and the Ruby interpreter without prefixing the full directory name each time. htm for instructions.
Try the same with the age and the gender. 19 20 Ch apt er 2 ■ PR OG RA MMING == J OY: A W H I S T LE - S T O P T O U R O F R U B Y A N D O B JE C T O R I E N TAT I O N nNote In previous examples, you’ve used print to put things on the screen. In the preceding example, you used puts. The difference between print and puts is that puts automatically moves the output cursor to the next line (that is, it adds a newline character to start a new line), whereas print continues printing text onto the same line as the previous time.