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Matplotlib (pyplot) savefig outputs blank image
...values that depend whether or not T0 exists.
Second, after plt.show() is called, a new figure is created. To deal with this, you can
Call plt.savefig('tessstttyyy.png', dpi=100) before you call plt.show()
Save the figure before you show() by calling plt.gcf() for "get current figure", then you ca...
In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...ld instances (at least,
not at the moment). If a base class has a field called author, you
cannot create another model field called author in any class that
inherits from that base class.
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The term 'Update-Database' is not recognized as the name of a cmdlet
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Usually you just need to exit restart VS. See my comments in the original question. On rare occasions you might need to exit/restart VS twice.
– RickAndMSFT
Jul 17 '13 at 1:46
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animating addClass/removeClass with jQuery
...xample: http://jsfiddle.net/tw16/JfK6N/
#someDiv{
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
}
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Add new item in existing array in c#.net
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I would use a List if you need a dynamically sized array:
List<string> ls = new List<string>();
ls.Add("Hello");
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
__attribute____attribute__instructionsGNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（Variabl GNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可...
What are naming conventions for MongoDB?
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Keep'em short: Optimizing Storage of Small Objects, SERVER-863. Silly but true.
I guess pretty much the same rules that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singul...
How to convert std::string to LPCSTR?
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Call c_str() to get a const char * (LPCSTR) from a std::string.
It's all in the name:
LPSTR - (long) pointer to string - char *
LPCSTR - (long) pointer to constant string - const char *
LPWSTR - (long) pointer to Unicode (...
jQuery disable/enable submit button
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This works, but seems to leave out the css. For example, calling $("#loginButton").button(); on input id="loginButton" type="submit" name="Submit" value="Login" disabled> will show a disabled button with css disabled classes.
– Gaʀʀʏ
Sep ...
How to construct a WebSocket URI relative to the page URI?
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Using the Window.URL API - https://developer.mozilla.org/en-US/docs/Web/API/Window/URL
Works with http(s), ports etc.
var url = new URL('/path/to/websocket', window.location.href);
url.protocol = url.protocol.replace('http', 'ws');
url.hre...