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In C#, how do I calculate someone's age based on a DateTime type birthday?

... Just wanted to comment on DateTime.Now performance. If you don't need an accurate time zone value, use DateTime.UtcNow it's much faster. – JAG Jan 22 '09 at 10:29 1...
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When to use next() and return next() in Node.js

... to ensure that the execution stops after triggering the callback. If you don't do it, you risk triggering the callback a second time later, which usually has devastating results. Your code is fine as it is, but I would rewrite it as: app.get('/users/:id?', function(req, res, next){ var id = r...
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Python coding standards/best practices [closed]

In python do you generally use PEP 8 -- Style Guide for Python Code as your coding standards/guidelines? Are there any other formalized standards that you prefer? ...
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Best way to remove an event handler in jQuery?

...mage').off('click'); $('#myimage').on('click.mynamespace', function() { /* Do stuff */ }); $('#myimage').off('click.mynamespace'); jQuery < 1.7 In your example code you are simply adding another click event to the image, not overriding the previous one: $('#myimage').click(function() { retu...
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What is [Serializable] and when should I use it?

...What is it? When you create an object in a .Net framework application, you don't need to think about how the data is stored in memory. Because the .Net Framework takes care of that for you. However, if you want to store the contents of an object to a file, send an object to another process or transm...
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Context switches much slower in new linux kernels

...ion to the bad thread wake up performance problem in recent kernels has to do with the switch to the intel_idle cpuidle driver from acpi_idle, the driver used in older kernels. Sadly, the intel_idle driver ignores the user's BIOS configuration for the C-states and dances to its own tune. In other wo...
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SQL Server - copy stored procedures from one db to another

I am new to SQL, and what I needed to do was to combine 2 .mdf databases into one. I did that using SQL Server 2008 Manager - Tasks > Import/Export tables.The tables and views were copied successfully, but there are no Stored procedures in the new database. Is there any way to do that? ...
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How do I debug Node.js applications?

How do I debug a Node.js server application? 39 Answers 39 ...
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Is there a command like “watch” or “inotifywait” on the Mac?

...swatch can now be used across many platforms including BSD, Debian, and Windows. Syntax / A Simple Example The new way that can watch multiple paths - for versions 1.x and higher: fswatch -o ~/path/to/watch | xargs -n1 -I{} ~/script/to/run/when/files/change.sh Note: The number output by -o w...
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How do I get cURL to not show the progress bar?

...rsion 7.19.5 on Ubuntu 9.10 (no progress bar). But if for some reason that does not work on your platform, you could always redirect stderr to /dev/null: curl http://google.com 2>/dev/null > temp.html share ...