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When is del useful in python?
I can't really think of any reason why python needs the del keyword (and most languages seem to not have a similar keyword). For instance, rather than deleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added.
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convert a char* to std::string
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Standard says that the constructor parameter "shall not be a null pointer" - it doesn't specify that any exceptions are thrown.
– anon
Jul 28 '09 at 18:22
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Alternate background colors for list items
..."link">Link 5</a></li>
</ul>
If your list is dynamically generated, this task would be much easier.
If you don't want to have to manually update this content each time, you could use the jQuery library and apply a style alternately to each <li> item in your list:
<u...
Why not to deploy on a Friday? [closed]
... monitoring that there aren't performance issues.
A new release will generally mean a brief spike of support activity - so scheduling that to happen when there are fewer people available (or when there's more resentment of time taken up) is a bad idea.
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XML schema or DTD for logback.xml?
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It is not supported officially according to the documentation, but there is an independent project to provide Schema for Logback
However, due to extreme flexibility of the Logback configuration, Schema cannot support all possible configuration option...
Visual Studio: Make view code default
... I'm fairly certain I didn't have the "Open With..." option until I installed the TF Power Tools.
– Disillusioned
Jul 10 '12 at 16:42
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MongoDB relationships: embed or reference?
...) size limit on a single document. In a world of GB of data this sounds small, but it is also 30 thousand tweets or 250 typical Stack Overflow answers or 20 flicker photos. On the other hand, this is far more information than one might want to present at one time on a typical web page. First cons...
How to create a tuple with only one element
In the below example I would expect all the elements to be tuples, why is a tuple converted to a string when it only contains a single string?
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How can I pass selected row to commandLink inside dataTable or ui:repeat?
...e by @ViewScoped.
Use Application#evaluateExpressionGet() to programmatically evaluate the current #{item}.
public void insert() {
FacesContext context = FacesContext.getCurrentInstance();
Item item = context.getApplication().evaluateExpressionGet(context, "#{item}", Item.class);
L...
C++, copy set to vector
...hold the input range.
std::back_inserter creates an output iterator that calls push_back on a container for each element, so each element is inserted into the container. Alternatively, you could have created a sufficient number of elements in the std::vector to hold the range being copied:
std::v...