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How to find all combinations of coins when given some dollar value
...or this, and contains a fairly extensive discussion of the problem. Essentially you define a polynomial where the nth coefficient is the number of ways of making change for n dollars.
Pages 4-5 of the writeup show how you can use Mathematica (or any other convenient computer algebra system) to comp...
How do I find the next commit in git? (child/children of ref)
...
To list all the commits, starting from the current one, and then its child, and so on - basically standard git log, but going the other way in time, use something like
git log --reverse --ancestry-path 894e8b4e93d8f3^..master
wher...
What are inline namespaces for?
C++11 allows inline namespace s, all members of which are also automatically in the enclosing namespace . I cannot think of any useful application of this -- can somebody please give a brief, succinct example of a situation where an inline namespace is needed and where it is the most idiomatic s...
How to get the request parameters in Symfony 2?
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The naming is not all that intuitive:
use Symfony\Component\HttpFoundation\Request;
public function updateAction(Request $request)
{
// $_GET parameters
$request->query->get('name');
// $_POST parameters
$request->r...
How to set ViewBag properties for all Views without using a base class for Controllers?
...h as the current user, onto ViewData/ViewBag in a global fashion by having all Controllers inherit from a common base controller.
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Is it possible to preview stash contents in git?
...shows the last tone, 1 the second last one.. etc. git stash list will show all the available.
– brita_
Jul 18 '14 at 21:13
7
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List all of the possible goals in Maven 2?
...d of the following phases:
validate: validate the project is correct and all necessary information is available.
compile: compile the source code of the project.
test: test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or depl...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...and updating the model values (EditableValueHolder components only) and finally invoke the queued ActionEvent (ActionSource components only). JSF will skip processing of all other components which are not covered by process attribute. Also, components whose rendered attribute evaluates to false duri...
Singular or plural controller and helper names in Rails
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Using plural names for controllers is just a convention.
Plural names usually sound more natural (especially for controllers that are tied directly to a specific model: User -> Users, etc.), but you can use whatever you want.
As for helpers, all helpers are available for all controllers by def...
How do I update my bare repo?
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If you want to duplicate all the objects from the main repo, do this inside the main repo:
git push --all <url-of-bare-repo>
Alternatively, do a fetch inside the bare repo:
git fetch <url-of-main-repo>
You cannot do a pull, because ...