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Why can't I forward-declare a class in a namespace using double colons?

... All other answers were confusing to me but this "you can't declare a class within a namespace from outside that namespace. You have to be in the namespace." was very helpful hint to remember. – dashesy ...
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How do I disable right click on my web page?

... on my web page without using JavaScript? I ask this because most browsers allow user to disable JavaScript. 24 Answers ...
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How to escape double quotes in JSON

.../publications/files/ECMA-ST/ECMA-404.pdf (Par. 9 - Strings) where it says: All characters may be placed within the quotation marks except for the characters that must be escaped and then it specifies: \" represents the quotation mark character (U+0022) – mastazi ...
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Extract subset of key-value pairs from Python dictionary object?

... If you're using Python 3, and you only want keys in the new dict that actually exist in the original one, you can use the fact to view objects implement some set operations: {k: bigdict[k] for k in bigdict.keys() & {'l', 'm', 'n'}} ...
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Are PHP functions case sensitive?

I was digging through some code, and I found some calls to mySQL_fetch_array . Is PHP case sensitive about function names? I recall reading this somewhere but can't seem to find any reference to it. ...
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How do you test running time of VBA code?

...Counter. Google it for more info. Try pushing the following into a class, call it CTimer say, then you can make an instance somewhere global and just call .StartCounter and .TimeElapsed Option Explicit Private Type LARGE_INTEGER lowpart As Long highpart As Long End Type Private Declare Fu...
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django : using select_related and get_object_or_404 together

Is there any way of using get_object_or_404 and select_related together or any other way to achieve the result of using these two together(except from putting it in try/except)?? ...
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Apache Kafka vs Apache Storm

...at has distributed real time processing abilities, meaning you can execute all kind of manipulations on real time data in parallel. The common flow of these tools (as I know it) goes as follows: real-time-system --> Kafka --> Storm --> NoSql --> BI(optional) So you have your real time...
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How to load assemblies in PowerShell?

... While it is technically correct that LoadWithPartialNamehas been deprecated, the reasons (as outlined in blogs.msdn.com/b/suzcook/archive/2003/05/30/57159.aspx) clearly don't apply for an interactive Powershell session. I suggest you add a note...
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How to profile methods in Scala?

What is a standard way of profiling Scala method calls? 12 Answers 12 ...