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Javascript Reduce an empty array

When I reduce the array, I am trying to get the number zero, but I dont clearly understand the behaviour of the function 2 ...
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Doctrine 2 can't use nullable=false in manyToOne relation?

An User has one Package associated with it. Many users can refer to the same package. User cannot exists without a Package defined. User should own the relation. Relation is bidirectional, so a Package has zero or more users in it. ...
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How do I use define_method to create class methods?

This is useful if you are trying to create class methods metaprogramatically: 6 Answers ...
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How do I share IntelliJ Run/Debug configurations between projects?

I have many different versions of my app. Each one is a separate intellij project. Every time I open a new one, the list of configurations starts blank: ...
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What can I do with a moved-from object?

Does the standard define precisely what I can do with an object once it has been moved from? I used to think that all you can do with a moved-from object is do destruct it, but that would not be sufficient. ...
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Android Studio suddenly cannot resolve symbols

Android Studio 0.4.2 was working fine and today I opened it and almost everything was red and the auto-completion had stopped working. I look at the imports and AS seems to be telling me it can't find android.support.v4 all of a sudden (offering me the option to remove the unused imports). ( andro...
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How do I get hour and minutes from NSDate?

In my application I need to get the hour and minute separately: 8 Answers 8 ...
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Converting a double to an int in C#

In our code we have a double that we need to convert to an int. 5 Answers 5 ...
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How to use WPF Background Worker

In my application I need to perform a series of initialization steps, these take 7-8 seconds to complete during which my UI becomes unresponsive. To resolve this I perform the initialization in a separate thread: ...
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Round a Floating Point Number Down to the Nearest Integer?

As the title suggests, I want to take a floating point number and round it down to the nearest integer. However, if it's not a whole, I ALWAYS want to round down the variable, regardless of how close it is to the next integer up. Is there a way to do this? ...