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When can I use a forward declaration?
...nt on the way the type is used in the template.
For instance, std::vector<T> requires its parameter to be a complete type, while boost::container::vector<T> does not. Sometimes, a complete type is required only if you use certain member functions; this is the case for std::unique_ptr<...
C++ templates that accept only certain types
...e in concert with is_base_of from the Boost Type Traits library:
template<typename T>
class ObservableList {
BOOST_STATIC_ASSERT((is_base_of<List, T>::value)); //Yes, the double parentheses are needed, otherwise the comma will be seen as macro argument separator
...
};
In some...
How to place div side by side
... many ways to do what you're asking for:
Using CSS float property:
<div style="width: 100%; overflow: hidden;">
<div style="width: 600px; float: left;"> Left </div>
<div style="margin-left: 620px;"> Right </div>
</div>
Using CSS display pro...
Shorter syntax for casting from a List to a List?
...
If X can really be cast to Y you should be able to use
List<Y> listOfY = listOfX.Cast<Y>().ToList();
Some things to be aware of (H/T to commenters!)
You must include using System.Linq; to get this extension method
This casts each item in the list - not the list itself....
How do you clear Apache Maven's cache?
...
Delete the artifacts (or the full local repo) from c:\Users\<username>\.m2\repository by hand.
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Default value of a type at Runtime [duplicate]
For any given type i want to know its default value.
6 Answers
6
...
Is there a best practice for generating html with javascript
...formance hit, and is really, really straightforward:
var t = $.template('<div><img src="${url}" />${name}</div>');
$(selector).append( t , {
url: jsonObj.url,
name: jsonObj.name
});
I say go the cool route (and better performing, more maintainable), and use templating...
Set the table column width constant regardless of the amount of text in its cells?
...d {
border: 1px solid black;
width: 100px;
overflow: hidden;
}
<table>
<tr>
<th>header 1</th>
<th>header 234567895678657</th>
</tr>
<tr>
<td>data asdfasdfasdfasdfasdf</td>
<td>data 2</td>
...
How to vertically align elements in ?
I have a horizontal <ul> and I need to center each <li> in it vertically. My markup is below. Each <li> has a border, and I need the items as well as their contents to be in the middle vertically. Please help; I am new to CSS.
...
Can I nest a element inside an using HTML5?
...ons or other links).
In other words, you can nest any elements inside an <a> except the following:
<a>
<audio> (if the controls attribute is present)
<button>
<details>
<embed>
<iframe>
<img> (if the usemap attribute is present)
<input> ...