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What's the $unwind operator in MongoDB?

...om your mind. The way that it stores your data is in the form of documents and collections, which allows for a dynamic means of adding and obtaining the data from your storage locations. That being said, in order to understand the concept behind the $unwind parameter, you first must understand what...
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How to pull request a wiki page on GitHub?

...t isn't open for editing. Then I forked the project, edited it on "my end" and tried to do a pull request. It turns out, the wiki isn't in the project, and there isn't a way to commit changes to it. ...
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Node.js / Express.js - How does app.router work?

...e calls is important, because some middleware depends on other middleware, and some middleware near the end might not even be called. ...
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prototype based vs. class based inheritance

In JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype. ...
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Difference between thread's context class loader and normal classloader

What is the difference between a thread's context class loader and a normal class loader? 4 Answers ...
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I want to execute shell commands from Maven's pom.xml

I want to execute Linux shell commands with Maven. Here is what I tried: 5 Answers 5 ...
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How to use WeakReference in Java and Android development?

... Using a WeakReference in Android isn't any different than using one in plain old Java. Here is a great guide which gives a detailed explanation: Understanding Weak References. You should think about using one whenever you need a reference to an obj...
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Why does pthread_cond_wait have spurious wakeups?

... operations. In the following comp.programming.threads discussion, he expands on the thinking behind the design: Patrick Doyle wrote: > In article , Tom Payne wrote: > >Kaz Kylheku wrote: > >: It is so because implementations can sometimes not avoid inserting > >: the...
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Correct way to delete cookies server-side

For my authentication process I create a unique token when a user logs in and put that into a cookie which is used for authentication. ...
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Entity framework linq query Include() multiple children entities

...e to preserve your sanity. Obsolete Info (Don't do this): The multiple grandchildren loading could be done in one step, but this requires a rather awkward reversal back up the graph before heading down the next node (NB: This does NOT work with AsNoTracking() - you'll get a runtime error): var co...