all repos — h3rald @ 2e83d5668f040221d07b71f73f63143db2608739

The sources of https://h3rald.com

content/ruby-compendium/book/features.html

 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 
<!DOCTYPE html> 
<html lang="en"> 
	<head> 
		<title>Advanced Language Features &ndash; Ruby Compendium</title> 
		<link href='http://fonts.googleapis.com/css?family=Crimson+Text:400,400italic,600,600italic,700,700italic' rel='stylesheet' type='text/css'>
		
		
		
		<meta charset="utf-8" />
		<meta name="author" content="Fabio Cevasco" />
		<meta name="copyright" content="Fabio Cevasco" />
		<meta name="robots" content="all, follow" />
		<meta name="Revisit-After" content="2 Days" />
		<meta name="language" content="en" />
		<meta name="target_country" content="en-us" />
		<meta name="country" content="United States" />
                <meta name="readability-verification" content="XmaVzRjmcFL5Bb2Fu9TZVdDKzhA3apQdxexTB2rK"/>
		<meta name="description" content="H3RALD - Fabio Cevasco's Web Site" />
		
		<meta name="keywords" content="h3rald, fabio cevasco, ruby-compendium" />
		<link rel="shortcut icon" href="/favicon.png" type="image/png" /> 
		<meta content="44.388041;9.073248" name="ICBM" />

		<link rel="stylesheet" type="text/css" href="/styles/html5reset.css" />
		<link rel="stylesheet" type="text/css" href="/styles/style.css" />

    <script src="http://www.google.com/jsapi?key=ABQIAAAAr6RY1Z6dchG_sX9WDLSy3xRlq2n1sm52B5HDRR5tm6o8XM18FhR56xHNNH6CsX86uN5VoTrglpyOyQ" type="text/javascript"></script>
		<script src="/js/sevenup.js" type="text/javascript"></script>
		<script src="/js/sevenup_black.js" type="text/javascript"></script>
		<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>
		<script src="/js/jquery-timeago.js" type="text/javascript"></script>
		<script src="/js/jquery-easing.js" type="text/javascript"></script>
		<script src="/js/jquery-fancybox.js" type="text/javascript"></script>
		<script src="/js/date.js" type="text/javascript"></script>
		<script src="/js/feeds.js" type="text/javascript"></script>
		<script src="/js/hyphenator.js" type="text/javascript"></script>
		<script src="/js/init.js" type="text/javascript"></script>
		<script src="/js/search.js" type="text/javascript"></script>
	</head>
	<body>
		<section id="container">
			
				<header class="page">
	<nav class="home-link">
		<a href="/">
			<img src="/images/h3rald_small.png" alt="H3RALD" class="default"/>
			<![if !IE]>
			<img src="/images/h3rald_hover_small.png" alt="H3RALD" class="hover"/>
			<![endif]>
		</a>
	</nav>
	
	<nav class="section">
		/<a href="/ruby-compendium/" rel="ruby-compendium">RUBY-COMPENDIUM</a>
	</nav>
	
</header>
				<article class="page glyph-book">
					<header>
	<hgroup>
		<h1>Advanced Language Features</h1> 
		<h2>Ruby Compendium</h2>
	</hgroup>
  </header>
					<section id="body-text" class="hyphenate glyph-book">

							<nav class="navigation"><a href="/ruby-compendium/book/core-stdlib.html">The Core and the Standard Library</a> | <a href="/ruby-compendium/book/index.html">Contents</a> | <a href="/ruby-compendium/book/gems.html">Ruby Gems</a></nav>
							<p>One of the best things about Ruby is that you&#8217;re not stuck with a single programming paradigm. Even though everything in Ruby is an object (thereby making it a fully object-oriented language), nothing forbids you to program procedurally, or even use typical functional constructs.</p>
<p>The beauty of this is that you can (and should) combine elements from different paradigms, resulting in very powerful and expressive code. What I really like about Ruby though is its inherent dynamic nature.</p>
<p>You have a very few constraints when coding:</p>
<ul>
	<li>you can open and close class definitions at will,</li>
	<li>you are not constrained by object types</li>
	<li>you can mix-in methods in multiple classes at the same time</li>
	<li>you can write code that <em>writes itself</em> dynamically (this is commonly called <em>metaprogramming</em>)</li>
	<li>you can easily create Domain-Specific Language to solve problems faster, with style</li>
	<li>you can create and pass around blocks of code</li>
</ul>
<p>All these things make the language very flexible and powerful. Do not overuse Ruby&#8217;s power: if your code starts to look like black magic, you&#8217;re probably going too far.</p>
<aside class="box">
<div class="box-title">If you want to know more...</div>
<p>&#8230;on specific and advanced Ruby features, check out these articles:</p>
<ul>
	<li><a href="http://olabini.com/blog/2006/09/ruby-metaprogramming-techniques/">Ruby Metaprogramming techniques</a></li>
	<li><a href="http://www.skorks.com/2010/05/ruby-procs-and-lambdas-and-the-difference-between-them/">Ruby Procs And Lambdas (And The Difference Between Them)</a></li>
	<li><a href="http://juixe.com/techknow/index.php/2006/06/15/mixins-in-ruby/">Ruby Mixin Tutorial</a></li>
	<li><a href="http://www.valibuk.net/2009/03/domain-specific-languages-in-ruby/">Domain Specific Languages in Ruby</a></li>
</ul>

</aside>


							<nav class="navigation"><a href="/ruby-compendium/book/core-stdlib.html">The Core and the Standard Library</a> | <a href="/ruby-compendium/book/index.html">Contents</a> | <a href="/ruby-compendium/book/gems.html">Ruby Gems</a></nav>
										<nav id="sharing-buttons">
<a href="http://twitter.com/share" class="twitter-share-button" data-count="horizontal" data-via="h3rald">Tweet</a>
<script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>
<g:plusone size="medium"></g:plusone>
<script type="text/javascript">
  (function() {
    var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
    po.src = 'https://apis.google.com/js/plusone.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
  })();
</script>
</nav>
					</section>
				</article>
					
			
			<footer>
				<section class="ads">
					<script type="text/javascript"><!--
						google_ad_client = "pub-2871497824158668";
						/* 728x90, created 9/10/10 */
						google_ad_slot = "3963343166";
						google_ad_width = 728;
						google_ad_height = 90;
						//-->
					</script>
					<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
					</script>
				</section>
				<section>
					<nav>
						<a href="/about/">ABOUT</a>|<a href="/contact/">CONTACT</a>
					</nav>
					<p>H3RALD Web Site v8.1.2 &copy; 2004 &mdash; 2011 <em>Fabio Cevasco</em></p>
				</section>
			</footer>
		</section><!-- #container end -->
		
		
 <!-- Start Google Analytics --> 
 <script type="text/javascript">
  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-18587377-1']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
 </script> 
 <!-- End Google Analytics --> 
 <!-- Start of StatCounter Code --> 
  <script type="text/javascript"> 
	var sc_project=6193656; 
	var sc_invisible=1; 
	var sc_security="57f7ee2a"; 
	</script> 
	<script type="text/javascript" src="http://www.statcounter.com/counter/counter_xhtml.js"></script> 
	<!-- End of StatCounter Code --> 
	</body>
</html>