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Defining an abstract class without any abstract methods
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And it's not just the OP. Look at all the upvotes the question has gotten!
– Marc W
Jan 27 '11 at 0:20
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SQLite UPSERT / UPDATE OR INSERT
...r in a single statement. Plus you get all the other features, improvements and bug fixes that usually come with a more recent release.
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Java, Classpath, Classloading => Multiple Versions of the same jar/project
...reference to the class you are trying to load, it delegates to its parent, and so on, until you get to the bootstrap class loader. If none of them find a reference to the class you are trying to load you get a ClassNotFoundException.
If you have two classes with the same binary name, searchable by t...
C++11 range based loop: get item by value or reference to const
... with copies.
Choose auto &x when you want to work with original items and may modify them.
Choose auto const &x when you want to work with original items and will not modify them.
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URL matrix parameters vs. query parameters
...lay when making a complex REST-style query to multiple levels of resources and sub-resources:
http://example.com/res/categories;name=foo/objects;name=green/?page=1
It really comes down to namespacing.
Note: The 'levels' of resources here are categories and objects.
If only query parameters wer...
Best way to get child nodes
...y best, I mean: most cross-browser compatible, fastest, most comprehensive and predictable when it comes to behaviour. A list of methods/properties I use as aliases:
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WPF Auto height in code
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Nimrod's answer is much more explicit and easier to understand.
– David
Oct 13 '16 at 15:29
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What is non-blocking or asynchronous I/O in Node.js?
...rage is a blocking operation as it stalls execution to read. On the other hand, fetch is a non-blocking operation as it does not stall alert(3) from execution.
// Blocking: 1,... 2
alert(1);
var value = localStorage.getItem('foo');
alert(2);
// Non-blocking: 1, 3,... 2
alert(1);
fetch('example.com...
How to create a template function within a class? (C++)
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And also that you cannot specialize them. :-(
– Frank Krueger
Jun 9 '09 at 20:03
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How can I get zoom functionality for images?
Is there a common way to show a big image and enable the user to zoom in and out and pan the image?
13 Answers
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