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conditional unique constraint

I have a situation where i need to enforce a unique constraint on a set of columns, but only for one value of a column. 6 A...
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Using generic std::function objects with member functions in one class

For one class I want to store some function pointers to member functions of the same class in one map storing std::function objects. But I fail right at the beginning with this code: ...
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How do I unbind “hover” in jQuery?

How do I unbind "hover" in jQuery? 8 Answers 8 ...
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How to define a List bean in Spring?

I'm using Spring to define stages in my application. It's configured that the necessary class (here called Configurator ) is injected with the stages. Now I need the List of Stages in another class, named LoginBean . The Configurator doesn't offer access to his List of Stages. ...
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update package.json version automatically

Before I do a small release and tag it, I'd like to update the package.json to reflect the new version of the program. 11 A...
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How to round to 2 decimals with Python?

I am getting a lot of decimals in the output of this code (Fahrenheit to Celsius converter). 16 Answers ...
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Numpy where function multiple conditions

I have an array of distances called dists. I want to select dists which are between two values. I wrote the following line of code to do that: ...
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Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?

Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image automatically? For example assume that I have a 512x512 image and I want to have different versions of this images for different screen resolutions supported by Android in appropriate folders. ...
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angular.service vs angular.factory

I have seen both angular.factory() and angular.service() used to declare services; however, I cannot find angular.service anywhere in official documentation. ...
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How to change the style of the title attribute inside an anchor tag?

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