ASP.NET Web PDF Document Viewer/Editor Control Library

Ruby on Rails wasn t a wallflower for long 2005 was an epic year for Ruby on Rails, and Ruby s popularity exploded alongside it The initial fans of Ruby on Rails had began blogging feverishly about the technology and were winning over converts with an unintentional, but surprisingly potent, grassroots viral marketing campaign In January 2005, Slashdot, the world s most popular technology community Web site at the time, published its first post mentioning Ruby on Rails, and since then has run scores of stories on the technology, each encouraging existing PHP, Perl, and Python developers to give Ruby and Ruby on Rails a try In March 2005, Hansson announced the development of the first commercial Rails book, which came out in beta PDF form in May of that year In September 2005, the print version of the book went on sale and immediately topped the Amazon.

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com chart for programming books In the space of a year, Rails books were under development and being released by a multitude of publishers; tens of thousands of blog posts had been made about the technology; hundreds of thousands of screencasts (watchable screenshot videos demonstrating how to use Rails) had been watched online; and David Heinemeier Hansson had won numerous awards, including Google and O Reilly s Best Hacker of the Year 2005 Tens of thousands of developers were suddenly flocking to Ruby on Rails and, therefore, Ruby The Ruby ecosystem was rapidly thrust into the limelight, especially on the back of the Web 20 concept, a coined term that refers to a supposed second generation in Internet-based services, and is often used to refer to the culture of blogs, social networking, wikis, and other user-content driven Web sites.

The setdefault method is somewhat similar to get, except that in addition to the get functionality, setdefault sets the value corresponding to the given key if it is not already in the dictionary:

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As Ruby and Rails make these sites easy to develop, many developers have used these tools to their advantage to get ahead in the Web 20 field..

When Ruby was initially developed, Matz didn t have a specific development culture in mind. He developed the language to be for his own use and to fit his own mindset. For the first couple years he kept the language mostly to himself. Most of today s culture relating to how to develop software with Ruby has evolved in the last few years and is partly shared with other programming languages.

To plan for this, sketch the letter B on the corner of your Key Point slides. You ll remove the note later when you add graphics to the slide, but for now it s your cue that after you present the rst Key Point slide, you ll press the B key on your keyboard, or the appropriate button on your remote control, to turn the screen to black. Then, as all eyes turn to you, you ll emphasize verbally the key point. When you ve nished, you ll press the B key again to return to the Key Point slide before moving on. (Alternatively, press the W key to turn the screen to white.) Later, when you get to the second and third Key Point slides, you ll do the same.

A common element of the Ruby development culture that s crucial to understand is the open source movement.

>>> d = {} >>> d.setdefault('name', 'N/A') 'N/A' >>> d {'name': 'N/A'} >>> d['name'] = 'Gumby' >>> d.setdefault('name', 'N/A') 'Gumby' >>> d {'name': 'Gumby'} As you can see, when the key is missing, setdefault returns the default and updates the dictionary accordingly. If the key is present, its value is returned and the dictionary is left unchanged. The default is optional, as with get; if it is left out, None is used: >>> d = {} >>> print d.setdefault('name') None >>> d {'name': None}