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Combining two expressions (Expression)

I have two expressions of type Expression<Func<T, bool>> and I want to take to OR, AND or NOT of these and get a new expression of the same type ...
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Element-wise addition of 2 lists?

... There are many times where python syntax is really elegant and simple, but unfortunately this isn't one of them. And for such a simple task, it's a pity.... Why would they make "+" concatenate the lists when there's already the .extend() method? – Nic Scozzaro ...
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PHP 5: const vs static

In PHP 5, what is the difference between using const and static ? 7 Answers 7 ...
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What is the difference between a field and a property?

In C#, what makes a field different from a property, and when should a field be used instead of a property? 32 Answers ...
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(SC) DeleteService FAILED 1072

Last time I create WAS profile and WASService then I try to config and run many script for learn how to config WAS, Finally it crash so i use wasprofile delete this profile and forgot delete WASService. ...
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How do I remove the space between inline/inline-block elements?

Given this HTML and CSS: 40 Answers 40 ...
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How do I fix a NoSuchMethodError?

...ng a NoSuchMethodError error when running my Java program. What's wrong and how do I fix it? 28 Answers ...
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How do I manage MongoDB connections in a Node.js web application?

...tive says: You open do MongoClient.connect once when your app boots up and reuse the db object. It's not a singleton connection pool each .connect creates a new connection pool. So, to answer your question directly, reuse the db object that results from MongoClient.connect(). This gives yo...
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Print Current Mercurial Revision Hash?

... No prob. hg help revisions and hg help revsets has some crazy powerful shortcuts like that. – Ry4an Brase Jun 13 '12 at 20:47 ...
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How do I find the caller of a method using stacktrace or reflection?

... A StackTraceElement has getClassName(), getFileName(), getLineNumber() and getMethodName(). You will have to experiment to determine which index you want (probably stackTraceElements[1] or [2]). share | ...