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Number of elements in a javascript object

Is there a way to get (from somewhere) the number of elements in a javascript object?? (i.e. constant-time complexity). 6 A...
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How to get the index of an element in an IEnumerable?

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Git is ignoring files that aren't in gitignore

I have a git repository that is ignoring image files as well as a few other files, but my .gitignore file only has it ignoring a config.php file. Is there some global ignore file somewhere that I can't seem to find? I have to specify files to add them now, and it's giving me this warning: ...
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Standard alternative to GCC's ##__VA_ARGS__ trick?

There is a well-known problem with empty args for variadic macros in C99. 10 Answers ...
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Pure JavaScript Graphviz equivalent [closed]

Is anyone aware of a pure, Javascript based implementation of the directional flow diagrams that GraphViz is capable of generating? I am NOT interested in pretty visuals output, but the computations to figure out the maximum depth of each node, along with the layout of bezier lines that are optimize...
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LISTAGG in Oracle to return distinct values

I am trying to use the LISTAGG function in Oracle. I would like to get only the distinct values for that column. Is there a way in which I can get only the distinct values without creating a function or a procedure? ...
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How to set ViewBag properties for all Views without using a base class for Controllers?

In the past I've stuck common properties, such as the current user, onto ViewData/ViewBag in a global fashion by having all Controllers inherit from a common base controller. ...
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How can I create tests in Android Studio?

Just downloaded Android Studio which is based off of the Intellij Idea. 12 Answers 12 ...
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]

Please tell with a code example why is SimpleDateFormat not threadsafe. What is the problem in this class? Is The problem with format function of SimpleDateFormat ? Please give a code which demonstrates this fault in class. ...
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What is the proper declaration of main?

What is the proper signature of the main function in C++? What is the correct return type, and what does it mean to return a value from main ? What are the allowed parameter types, and what are their meanings? ...