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Why are ToLookup and GroupBy different?
... it probably makes little difference, but with LINQ-to-SQL (or LINQ-to-EF, etc.), the grouping operation is performed on the database server rather than the client, and so you may want to do an additional filtering on the group key (which generates a HAVING clause) and then only get some of the grou...
Is it possible to make an ASP.NET MVC route based on a subdomain?
...ter (when in use) is propagated through new links generated by Url.Action, etc.
The query parameter also enables local debugging with Visual Studio 2013 without having to configure with netsh or run as Administrator. By default, IIS Express only binds to localhost when non-elevated; it won't bind t...
OSGi: What are the differences between Apache Felix and Apache Karaf?
...c console, file loading so that you can actually read configuration files, etc. The latest zip file of it is 19.1 MB. Yeah. Small. It can easily run on small devices and work in embedded.
What you may be thinking of is something more like ServiceMix which uses Karaf as a core/kernel. But it inc...
windows版 svn 服务器搭建及总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...了，那要是客户端还连不上，就是防火墙的问题了，去/etc/sysconfig/iptables 设置一下，打开默认的3690端口就可以了
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在myeclipse 8.5中使用...
Role/Purpose of ContextLoaderListener in Spring?
...o tie the lifecycle of the ApplicationContext to the lifecycle of the ServletContext and
to automate the creation of the ApplicationContext, so you don't have to write explicit code to do create it - it's a convenience function.
Another convenient thing about the ContextLoaderListener is that it ...
Compare if two variables reference the same object in python
...st only once and reuses them. Special values such as (), None, True, False etc are defined to be singletons too. During execution the runtime also tries to reuse small numbers and strings, but in the end it's a tradeoff between speed and memory and what happends depends on how the Python runtime was...
is there an easy way to get the http status code in the failure block from AFHTTPClient?
...ut @wilhelmbot -- HTTPMethod would give you something like GET/POST/PUT... etc, probably not helpful for checking response status.
– shortstuffsushi
Aug 8 '13 at 13:44
add a c...
How to create an array containing 1…N
...alues by changing i+1 to expression required (e.g. i*2, -i, 1+i*2, i%2 and etc). If expression can be expressed by some function f then the first form becomes simply
[ ...Array(N).keys() ].map(f)
Examples:
Array.from({length: 5}, (v, k) => k+1);
// [1,2,3,4,5]
Since the array is initialize...
Select random row from a sqlite table
...it, as you still won't be able to optimize the OFFSET for joins, order by, etc... (and without ORDER BY the order is undefined.)
– Yakov Galka
Jun 13 '16 at 14:57
add a commen...
What is the difference between using IDisposable vs a destructor in C#?
...ngs to GC) - but is used for example to close files, database connections, etc.
There are lots of previous topics on this:
deterministic finalization
disposing objects
using block
resources
Finally, note that it is not uncommon for an IDisposable object to also have a finalizer; in this case, D...