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Spring MVC: How to perform validation?
...o is the reference implementation (this library has nothing to do with databases and relational mapping, it just does validation :-).
Then in your controller you would have something like :
@RequestMapping(value="/user", method=RequestMethod.POST)
public createUser(Model model, @Valid @ModelAttrib...
How to remove/ignore :hover css style on touch devices
...state that
The pointer CSS @media feature can be used to apply styles based on
whether the user's primary input mechanism is a pointing device, and
if so, how accurate it is
.
What I discovered is that pointer: coarse is something that is unknown to all desktop browsers in the attached t...
How to prevent Browser cache for php site
...ragma: no-cache');
AND Option 2 IS ALWAYS BETTER in order to avoid proxy based caching issue.
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How does the “this” keyword work?
...led or by bind, not by where it is defined. Calling any function without a base reference ("context") will default this to the global object or remain undefined in strict mode.
– RobG
Jun 20 '14 at 1:50
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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 ...