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Rails: How to change the title of a page?
... (as others have already suggested). However, in simple cases such as this one I like to put the necessary code directly into the specific views without custom helpers.
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How to close TCP and UDP ports via windows command line
...either for Windows to provide an API that allows this directly, or for someone to have written a program that operates somewhat like a VPN or Fiddler and gives you a way to close sockets that pass through it.
There is at least one program (CurrPorts) that does exactly this and I used it today for...
What is the performance cost of having a virtual method in a C++ class?
Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer.
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How can I make a div not larger than its contents?
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if someone wonders : one can then center the parent of the table by setting "text-align:center" on it's parent and "text-align:left" on it (e.g. <body style="text-align:center"><span style="text-align:left; display:inline-b...
When should I make explicit use of the `this` pointer?
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@CamJackson: One can specialize classes on type: template<> struct A<float> { float x; };
– Macke
Dec 3 '14 at 7:33
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How to log a method's execution time exactly in milliseconds?
...o use mach_absolute_time, as shown in many of the other answers here. This one should be downvoted for being a bad example. See also the related answer that explains this all in more detail: stackoverflow.com/a/30363702/43615
– Thomas Tempelmann
Jun 4 '16 at 13...
Get name of property as a string
...but being unofficial is uninspiring. JimC's answer, which is based on this one, is much more concise and doesn't rely on a seemingly unavailable library.
– Kenny Evitt
Jan 29 '16 at 23:03
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Call Activity method from adapter
..., your activity etc.
If you need to use this same adapter for more than one activity then :
Create an Interface
public interface IMethodCaller {
void yourDesiredMethod();
}
Implement this interface in activities you require to have this method calling functionality.
Then in Adapter getV...
How to list all Git tags?
...ies a proper (unsigned annotated) tag (option '-a'), and not a lightweight one. So you are good with your initial command.
This differs from:
git show-ref --tags -d
Which lists tags with their commits (see "Git Tag list, display commit sha1 hashes").
Note the -d in order to dereference the ann...
ActiveRecord.find(array_of_ids), preserving order
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Oddly, no one has suggested something like this:
index = Something.find(array_of_ids).group_by(&:id)
array_of_ids.map { |i| index[i].first }
As efficient as it gets besides letting SQL backend do it.
Edit: To improve on my own ...