大约有 40,000 项符合查询结果（耗时：0.0410秒） [XML]
How do you turn off version control in android studio?
I set up my Github with android studio, everything worked fine, the problem now is though, that I can't seem to turn off, or get out of version control to use the IDE normally again.
...
Server polling with AngularJS
...I will stop updating for users of $timeout since a new timeout will not be set. For users of $interval, the UI will pickup where it left off as soon as connectivity is restored. Obviously picking sane delays is important as well.
– Bob
Jan 30 '14 at 2:58
...
How to configure a HTTP proxy for svn
...e.sixapart.com/svn/perlbal/ . I can only access the the repository url by setting a proxy. I guess if I want to get the code from the same URL by svn I need to configure a proxy, too. So does anyone of you could tell me how to configure a HTTP proxy in svn?
...
Stop and Start a service via batch or cmd file?
... sdshow----------Displays a service's security descriptor.
sdset-----------Sets a service's security descriptor.
GetDisplayName--Gets the DisplayName for a service.
GetKeyName------Gets the ServiceKeyName for a service.
EnumDepend------Enumerates Service Depende...
How do you get current active/default Environment profile programmatically in Spring?
...veProfile;
This may throw an IllegalArgumentException if no profiles are set (I get a null value). This may be a Good Thing if you need it to be set; if not use the 'default' syntax for @Value, ie:
@Value("${spring.profiles.active:Unknown}")
private String activeProfile;
...activeProfile now co...
How to return an NSMutableArray from an NSSet
I'm able to put the contents of an NSSet into an NSMutableArray like this:
3 Answers
...
What is the use for IHttpHandler.IsReusable?
...dlers that are placed in the handlerRecycleList of the HttpApplication are set to null. If a handler is reusable it will not be set to null and the instance will be reused in the next request.
The main gain is performance because there will be less objects to garbage-collect.
The most important pai...
How do I mock the HttpContext in ASP.NET MVC using Moq?
...only, but it is actually derived from the ControllerContext, which you can set.
controller.ControllerContext = new ControllerContext( context.Object, new RouteData(), controller );
share
|
improv...
Remove duplicated rows using dplyr
...tinct function for this purpose.
Original answer below:
library(dplyr)
set.seed(123)
df <- data.frame(
x = sample(0:1, 10, replace = T),
y = sample(0:1, 10, replace = T),
z = 1:10
)
One approach would be to group, and then only keep the first row:
df %>% group_by(x, y) %>% filt...
Java reflection - impact of setAccessible(true)
I'm using some annotations to dynamically set values of fields in classes. Since I want to do this regardless of whether it's public, protected, or private, I am a calling setAccessible(true) on the Field object every time before calling the set() method. My question is what kind of impact does ...