Random, useful, interesting, or clever functions and one-liners.
Guidelines: * Any programming language will do. * The code must be your own. * The code must be readable -- it can be obfuscated but it should be formatted well. * Test your code before posting it. * Wrap your code in <pre><code>...</code></pre>, and set Text Formatting to None. Remember to HTML-escape < and > if necessary.
Examples of good posts might include: * Posting a useful, well-documented function * Posting a particularly clever function and explaining it * Posting a particularly clever function and inviting the reader to figure it out