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Declare a block method parameter without using a typedef
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http://fuckingblocksyntax.com
As a method parameter:
- (void)someMethodThatTakesABlock:(returnType (^)(parameterTypes))blockName;
share
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领域驱动设计系列（五）:事件驱动之异步事件 - 更多技术 - 清泛网 - 专注C/...
...，只有在真的需要的时候再用。
作者: 王德水
出处：http://deshui.wang
领域驱动设计 DDD 事件驱动 异步事件
为iFrame添加动态载入效果，提高用户体验 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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<img style="floa: left;height: 20px;width: 20px;" src=https://www.tsingfun.com/uploadfile/2020/1108/20201108101136582.gif" />
联盟导航加载中，请稍后...
</div>
<iframe id="zgboke" onreadystatechange=stateChangeIE(this) onload=stateChangeFirefox(this) style="visi...
Why is argc not a constant?
...nst, just that it doesn't have to be, but it can be if you want it to be.
http://ideone.com/FKldHF, C example:
main(const int argc, const char* argv[]) { return 0; }
http://ideone.com/m1qc9c, C++ example
main(const int argc) {}
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Transpose/Unzip Function (inverse of zip)?
...'d', 4)])
[('a', 'b', 'c', 'd'), (1, 2, 3, 4)]
The way this works is by calling zip with the arguments:
zip(('a', 1), ('b', 2), ('c', 3), ('d', 4))
… except the arguments are passed to zip directly (after being converted to a tuple), so there's no need to worry about the number of arguments g...
String.Empty versus “” [duplicate]
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It's not different.
http://msdn.microsoft.com/en-us/library/system.string.empty.aspx:
The value of this field is the zero-length string, "".
In application code, this field is most commonly used in assignments to initialize a string variable to...
Static class initializer in PHP
I have an helper class with some static functions. All the functions in the class require a ‘heavy’ initialization function to run once (as if it were a constructor).
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Django Rest Framework File Upload
...h uploaded file
# ...
return Response(up_file.name, status.HTTP_201_CREATED)
urls.py
urlpatterns = patterns('',
url(r'^imageUpload', views.FileUploadView.as_view())
curl request to upload
curl -X POST -S -H -u "admin:password" -F "file=@img.jpg;type=image/jpg" 127.0.0.1:8000/r...
Python error “ImportError: No module named”
Python is installed in a local directory.
28 Answers
28
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How to access property of anonymous type in C#?
...Checked" property and if there is then get its value.
See this blog post:
http://blogs.msdn.com/wriju/archive/2007/10/26/c-3-0-anonymous-type-and-net-reflection-hand-in-hand.aspx
So something like:
foreach(object o in nodes)
{
Type t = o.GetType();
PropertyInfo[] pi = t.GetProperties(); ...