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How to filter SQL results in a has-many-through relation
...s.
6.000 students, 24.000 club memberships (data copied from a similar database with real life data.)
Slight diversion from the naming schema in the question: student.id is student.stud_id and club.id is club.club_id here.
I named the queries after their author in this thread, with an index where th...
Solving “Who owns the Zebra” programmatically?
...
Here's a solution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede Engli...
Xcode Project vs. Xcode Workspace - Differences
...rride it
Concrete target settings: PSE iPhone overrides the project’s Base SDK setting
In Xcode, you always open projects (or workspaces, but not targets), and all the targets it contains can be built/run, but there’s no way/definition of building a project, so every project needs at least o...
What is a Portable Class Library?
... you to create C# and Visual Basic libraries that run on a variety of .NET-based platforms without recompilation.
MSDN now has a nice article/documentation on it. You can check it out and see what is supported in Portable Class Library .
The following assemblies are available within a Po...
JavaScript: Class.method vs. Class.prototype.method
...oduced in ES6 is primarily a syntactical sugar over the existing prototype-based inheritance model.
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How do browsers pause/change Javascript when tab or window is not active?
...ms
https://hg.mozilla.org/releases/mozilla-release/file/0bf1cadfb004/dom/base/nsGlobalWindow.cpp#l296
Internet Explorer
IE does not limit the delay in setInterval when the tab is inactive, but it pauses requestAnimationFrame in inactive tabs. It does not matter whether the window is out of focus ...
What's the role of GetHashCode in the IEqualityComparer in .NET?
...es the one being sought, that would be very slow. Instead, like many hash-based collections, it relies upon GetHashCode to quickly exclude most non-matching values from consideration. If calling GetHashCode on an item being sought yields 42, and a collection has 53,917 items, but calling GetHashCo...
Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...on is just wow!
To see MUI in action you could download XAML Spy which is based on MUI.
EDIT: Using Modern UI for WPF a few months and i'm loving it!
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HEAD and ORIG_HEAD in Git
... name to operate on --- resetting and growing the branch tip via commit/rebase/etc.).
Reflog is a vehicle to go back in time and time machines have interesting interaction with the notion of "current".
HEAD@{5.minutes.ago} could mean "dereference HEAD symref to find out what branch we are...
Same-named attributes in attrs.xml for custom view
..."?>
<resources>
<!-- common attributes to all custom text based views -->
<declare-styleable name="TextAttributes">
<attr name="text" format="string"/>
<attr name="textSize" format="dimension"/>
<attr name="textColor" format="colo...