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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
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Thanks for the links! And thanks for the quick overview... My office is blocking the link for some reason :P but I'll check it out as soon as I get to a regular computer.
– froadie
Feb 11 '10 at 18:47
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Query an XDocument for elements by name at any depth
...= @"
<root>
<child id='1'/>
<child id='2'>
<grandchild id='3' />
<grandchild id='4' />
</child>
</root>";
XDocument doc = XDocument.Parse(xml);
foreach (XElement element in doc.Descendants("grandchild"))
{
C...
Generate pdf from HTML in div using Javascript
.... In order to enable it to print HTML, you have to include certain plugins and therefore have to do the following:
Go to https://github.com/MrRio/jsPDF and download the latest Version.
Include the following Scripts in your project:
jspdf.js
jspdf.plugin.from_html.js
jspdf.plugin.split_text_to_si...
How to flatten tree via LINQ?
...er style", convert Flatten to a generic extension method that takes a tree and a function that produces descendants from a node:
public static IEnumerable<T> Flatten<T>(
this IEnumerable<T> e
, Func<T,IEnumerable<T>> f
) => e.SelectMany(c => f(c).Flatten(f)...
How can I inject a property value into a Spring Bean which was configured using annotations?
...enerator(KeyGenerator kg) { ... }
systemProperties is an implicit object and strategyBean is a bean name.
One more example, which works when you want to grab a property from a Properties object. It also shows that you can apply @Value to fields:
@Value("#{myProperties['github.oauth.clientId']}")...
Concurrent HashSet in .NET Framework?
...t; _data;
This is the recommended option because the type is thread-safe and provide you the same advantages than a HashSet<T> except key and value are different objects.
Source: Social MSDN
ConcurrentBag
If you don't mind about the duplicate entries, you can use the class ConcurrentBag&l...
What is reflection and why is it useful?
What is reflection, and why is it useful?
21 Answers
21
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Looping a video with AVFoundation AVPlayer?
...ect as? AVPlayerItem {
playerItem.seek(to: CMTime.zero, completionHandler: nil)
}
}
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Font scaling based on width of container
...ized Typography
Here's a nice article about setting minimum/maximum sizes and exercising a bit more control over the sizes: Precise control over responsive typography
And here's an article about setting your size using calc() so that the text fills the viewport: http://codepen.io/CrocoDillon/pen/f...
How do I remove code duplication between similar const and non-const member functions?
...a detailed explanation, please see the heading "Avoid Duplication in const and Non-const Member Function," on p. 23, in Item 3 "Use const whenever possible," in Effective C++, 3d ed by Scott Meyers, ISBN-13: 9780321334879.
Here's Meyers' solution (simplified):
struct C {
const char & get()...