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How can I get a precise time, for example in milliseconds in Objective-C?
...to calculate millisecond time accuracy, you can do:
// Get a current time for where you want to start measuring from
NSDate *date = [NSDate date];
// do work...
// Find elapsed time and convert to milliseconds
// Use (-) modifier to conversion since receiver is earlier than now
double timePassed_...
What size do you use for varchar(MAX) in your parameter declaration?
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is there any performance drawback to setting all parameter lengths to -1, so I dont have to maintain a db-matching list?
– Andrew Bullock
Jul 23 '14 at 16:02
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How to get JSON objects value if its name contains dots?
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
Is there a difference between single and double quotes in Java?
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Use single quotes for literal chars, double quotes for literal Strings, like so:
char c = 'a';
String s = "hello";
They cannot be used any other way around (like in Python, for example).
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Using a BOOL property
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Apple simply recommends declaring an isX getter for stylistic purposes. It doesn't matter whether you customize the getter name or not, as long as you use the dot notation or message notation with the correct name. If you're going to use the dot notation it makes no differ...
Foreign key from one app into another in Django
I'm wondering if it's possible to define a foreign key in a models.py file in Django that is a reference to a table in another app?
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socket.emit() vs. socket.send()
.../socket.io/blob/master/lib/socket.js#L318). Maybe it's historical and just for backwards compatibility.
– Charles
Jul 20 '12 at 6:53
37
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Inno Setup for Windows service?
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For the C# neophyte (like me), you either need to add a using System.Reflection; or change Assembly to System.Reflection.Assembly in the code above.
– rlandster
Oct 9 '11 at 19:16
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How to enable C++11/C++0x support in Eclipse CDT?
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I found this article in the Eclipse forum, just followed those steps and it works for me. I am using Eclipse Indigo 20110615-0604 on Windows with a Cygwin setup.
Make a new C++ project
Default options for everything
Once created, right-click the project and ...
warning about too many open figures
...ith all its axes, but leaves the window opened, such that it may be reused for other plots.
plt.close() closes a window, which will be the current window, if not specified otherwise. plt.close('all') will close all open figures.
The reason that del fig does not work is that the pyplot state-machin...