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C++ equivalent of java's instanceof
...nceof) you'd better ask yourself whether it's a necessary thing. It's generally a sign of poor design.
Typical workarounds is putting the special behaviour for the class you are checking for into a virtual function on the base class or perhaps introducing something like a visitor where you can int...
Why can I access TypeScript private members when I shouldn't be able to?
...bers in TypeScript, and I find it a little confusing. Intellisense doesn't allow to access private member, but in pure JavaScript, it's all there. This makes me think that TS doesn't implement private members correctly.
Any thoughts?
...
Python json.loads shows ValueError: Extra data
...) # == json.loads(json.dumps({}) + json.dumps({}))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\json\__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "C:\Python27\lib\json\decoder.py", line 368, in decode
...
Are there any reasons to use private properties in C#?
...et
{
if (_password == null)
{
_password = CallExpensiveOperation();
}
return _password;
}
}
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Are C# events synchronous?
...stions:
Raising an event does block the thread if the event handlers are all implemented synchronously.
The event handlers are executed sequentially, one after another, in the order they are subscribed to the event.
I too was curious about the internal mechanism of event and its related operatio...
How to compile and run C/C++ in a Unix console/Mac terminal?
...
This is the command that works on all Unix machines... I use it on Linux/Ubuntu, but it works in OS X as well. Type the following command in Terminal.app.
$ g++ -o lab21 iterative.cpp
-o is the letter O not zero
lab21 will be your executable file
iterat...
python: Change the scripts working directory to the script's own directory
... __file__ fails in "frozen" programs (created using py2exe, PyInstaller, cx_Freeze). sys.argv[0] works. @ChrisDown: If you want to follow symlinks; os.path.realpath() could be used.
– jfs
Apr 5 '14 at 20:12
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Find MongoDB records where array field is not empty
All of my records have a field called "pictures". This field is an array of strings.
11 Answers
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How do I get NuGet to install/update all the packages in the packages.config?
...e are packages.config file for each project. How do I get NuGet to install/update all the packages needed? Does this need to be done via command line for each project?
...
How do I remove a property from a JavaScript object?
...t object, then that object will, of course, not be garbage collected until all references to it have disappeared.
delete will only work on properties whose descriptor marks them as configurable.
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