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Better way to cast object to int
... to signify a Nullable<int>. The "as" operator works like Convert.To____(), but think TryParse() rather than Parse(): it returns null rather than throwing an exception if the conversion fails.
Of these, I would prefer (int) if the object really is just a boxed integer. Otherwise use Conver...
not:first-child selector
...
One of the versions you posted actually works for all modern browsers (where CSS selectors level 3 are supported):
div ul:not(:first-child) {
background-color: #900;
}
If you need to support legacy browsers, or if you are hindered by the :not selector's...
TCP: can two different sockets share a port?
...
A server socket listens on a single port. All established client connections on that server are associated with that same listening port on the server side of the connection. An established connection is uniquely identified by the combination of client-side and serv...
Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
...roblem . After a long search I found a comment which had been ignored by all users pointing to the missing lib. Now, many months later, the comment has been changed to an answer. However, when I answered this question by msyself I intended to help other people by directly providing the solution. T...
程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...批程序员给隔离了。老邓接手以后，重构代码，出了个2.0版，为了开发速度，遗留了一堆BUG没处理。人们纷纷质疑：是不是核心构架太单一，双核会不会好点？
42、一程序员家的水管坏了，他打电话叫来一个水管工修理。 水...
Why use static_cast(x) instead of (int)x?
...e main reason is that classic C casts make no distinction between what we call static_cast<>(), reinterpret_cast<>(), const_cast<>(), and dynamic_cast<>(). These four things are completely different.
A static_cast<>() is usually safe. There is a valid conversion in the...
Multiple controllers with AngularJS in single page app
... items printing to the DOM via ng-repeat. Let's say each of these makes a call to ng-controller="myController. From some of the console logs I have seen in my application, myController re-initializes with EACH element being rendered in the DOM that calls to it....Maybe I screwed something up in my p...
What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...ove
Marking a reference field with CascadeType.REMOVE (or CascadeType.ALL,
which includes REMOVE) indicates that remove operations should be
cascaded automatically to entity objects that are referenced by that
field (multiple entity objects can be referenced by a collection
field):
@En...
JSP tricks to make templating easier?
...d with turning a bunch of HTML files into a simple JSP project. It's really all static, no serverside logic to program. I should mention I'm completely new to Java. JSP files seem to make it easy to work with common includes and variables, much like PHP , but I'd like to know a simple way to ge...
Validate that end date is greater than start date with jQuery
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I had to modify it slightly to allow for blank end dates in my app, but this did the bulk. code if (value == 0) { return true; } else if (!/Invalid|NaN/... code
– Frank Luke
Jun 23 '11 at 14:48
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