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Another Repeated column in mapping for entity error
Despite all of the others post, I can't find a solution for this error with GlassFish, on MacOSX, NetBeans 7.2.
8 Answers
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Git: How to remove file from index without deleting files from any repository
...ware (directly out of a repository).
Keep File as a ‘Default’ and Manually/Automatically Activate It
If it is not completely unacceptable to continue to maintain the configuration file's content in the repository, you might be able to rename the tracked file from (e.g.) foo.conf to foo.conf.de...
load and execute order of scripts
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If you aren't dynamically loading scripts or marking them as defer or async, then scripts are loaded in the order encountered in the page. It doesn't matter whether it's an external script or an inline script - they are executed in the order the...
How to reset / remove chrome's input highlighting / focus border? [duplicate]
...able to remove it using
outline: none;
but keep in mind this is potentially bad for usability: It will be hard to tell whether an element is focused, which can suck when you walk through all a form's elements using the Tab key - you should reflect somehow when an element is focused.
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To Workflow or Not to Workflow?
... match, so no problems there.
Regarding your concerns you are right. Basically WF4 is a new product and is lacking some important features and has some rough edges. There is a learning curve, you do have to do some things differently. The main point is long running and serialization, which is somet...
C# LINQ find duplicates in List
...erable.GroupBy(x => x.Key).Any(g => g.Count() > 1);
Find out if all values in an enumerable are unique :
var allUnique = enumerable.GroupBy(x => x.Key).All(g => g.Count() == 1);
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Why do you have to link the math library in C?
...es libm, so if you compile a C++ program with GCC (g++), you will automatically get libm linked in.
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HTML5 Canvas vs. SVG vs. div
...rs.
Canvas has the best performance hands-down, but you have to implement all concepts of managed state (object selection, etc) yourself, or use a library.
The long answer:
HTML5 Canvas is simply a drawing surface for a bit-map. You set up to draw (Say with a color and line thickness), draw tha...
Is Haxe worth learning? [closed]
...atform API, they can be reused from platform to platform with no effort at all. All the platforms also share common APIs like XML access, HTTP connections and reflection. Platforms that have things in common (i.e. Neko and PHP) share the same API for things like file access or web-server development...
System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
...ost efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to...