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What is the best way to create constants in Objective-C
...stants. Things like serial identifier numbers, bit-masks, four-byte codes, etc.
For those purposes, enum is great and you absolutely should use it. (Even better, use the NS_ENUM and NS_OPTIONS macros.) For other things, you must use something else; enum does not do anything but integers.
And other...
Differences between dependencyManagement and dependencies in Maven
...ment does is simply move your dependency definitions (version, exclusions, etc) up to the parent pom, then in the child poms you just have to put the groupId and artifactId. That's it (except for parent pom chaining and the like, but that's not really complicated either - dependencyManagement wins o...
Understanding $.proxy() in jQuery
...ary because this is about Context in ECMAScript, the this context variable etc.)
There are three different types of "Contexts" in ECMA-/Javascript:
The global context
Function context
eval context
Every code is executed in its execution context. There is one global context and there can be many...
Returning a C string from a function
...herently understood by the language itself. Other languages (Java, Pascal, etc.) use different methodologies to understand "my string".
If you ever use the Windows API (which is in C++), you'll see quite regularly function parameters like: "LPCSTR lpszName". The 'sz' part represents this notion of ...
Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
...classes aren't final, they just throw exceptions when the package of this.getClass() isn't org.eclipse.swt and you can't add new classes in that package because it's signed).
If you need a native, pure Java solution, that leaves you with the rest. Let's start with AWT, Swing, SwingX - the Swing way....
Python: Tuples/dictionaries as keys, select, sort
... 'blue'])
for k in blue_fruit:
print k[0], data[k] # prints 'banana 24', etc
Sorting works because tuples have natural ordering if their components have natural ordering.
With keys as rather full-fledged objects, you just filter by k.color == 'blue'.
You can't really use dicts as keys, but yo...
Simple tool to 'accept theirs' or 'accept mine' on a whole file using git
... @Santhos: the -- is used by Git to separate revisions (branch names etc.) from path names (filenames, directories). It is important if Git cannot decide if a name is the name of branch or the name of file. This follows POSIX (or GNU) convention of using double dash to separate options from ...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
... Clients();//构造函数
virtual ~Clients();//析构函数
int GetClientCount();
bool PutClient(int sock,const struct sockaddr_in &clientAddr);
void RemoveClient(int sock);
bool GetAddrBySocket(int sock,struct sockaddr_in *addr);
bool PutName(int sock,const char *name, int...
load scripts asynchronously
...much as they can. They can go ahead with parsing, loading and applying CSS etc... They cannot however start running the next script fragment. So stuff will block. By setting async, you are telling the browser that it's ok to go ahead and you will make sure that you make it work yourself.
...
What is @ModelAttribute in Spring MVC?
...rs of the form
Step 3 :
@ModelAttribute("student") Student theStudent
We fetch the values being hold by @ModelAttribute and assign the whole bean/object to Student.
Step 4 :
And then we use it as we bid, just like showing it on the page etc like I did
I hope it helps you to understand the concept...