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How can I find out if I have Xcode commandline tools installed?
...m the store, and with this new mechanism it can't install extra things outside of the Xcode.app, so you have to manually do it yourself, by:
xcode-select --install
On Xcode 4.x you can check to see if they are installed from within the Xcode
UI:
On Xcode 5.x it is now here:
My problem of f...
is_file or file_exists in PHP
...directory. file_exists() will return true if the given path points to a valid file or directory. So it would depend entirely on your needs. If you want to know specifically if it's a file or not, use is_file(). Otherwise, use file_exists().
...
When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
...ic interface SecurityContextFacade {
SecurityContext getContext();
void setContext(SecurityContext securityContext);
}
Now, my controller (or whatever POJO) would look like this:
public class FooController {
private final SecurityContextFacade securityContextFacade;
public FooControl...
How to delete last character from a string using jQuery?
...
@skajfes and @GolezTrol provided the best methods to use. Personally, I prefer using "slice()". It's less code, and you don't have to know how long a string is. Just use:
//-----------------------------------------
// @param begin Required. The inde...
When does static class initialization happen?
...initializers are executed in a textual order as defined in the class.
Consider the example:
public class Test {
static String sayHello() {
return a;
}
static String b = sayHello(); // a static method is called to assign value to b.
// but its a ha...
What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?
...ation properties and what are scalar properties?
– Abid Ali
Jul 10 '12 at 10:30
9
@AbidAli: I bel...
How to change a command line argument in Bash?
...
How can I do the same thing from inside a function? Your solution doesn't seem to work when invoked from inside a function.
– Hashken
May 6 '15 at 18:14
...
What is the difference between svg's x and dx attribute?
....
dx and dy are mostly useful when using <tspan> elements nested inside a <text> element to establish fancier multi-line text layouts.
For more details you can check out the Text section of the SVG spec.
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企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...服务器将会向响应中插入一个Cookie，以记录该服务实例的ID。当用户再次发送请求到负载平衡服务器时，其将根据该Cookie里所记录的服务实例的ID派发该请求。
相较于Cookie Learning，Cookie Insertion不需要在内存中维护Cookie与各个服...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
...g>(...)
which wouldn't make sense, as Nullable<string> isn't valid.
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