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What is the difference between \r and \n?
How are \r and \n different? I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes.
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Should I prefer pointers or references in member data?
..., as you mention, preventing the implementation of an assignment operator) and provide no benefits to what the class can provide.
Example problems:
you are forced to initialise the reference in each constructor's initialiser list: there's no way to factor out this initialisation into another func...
center aligning a fixed position div
...CCS3 transform property. Although it's not supported in some old browsers. And we don't even need to set a fixed or relative width.
.centered {
position: fixed;
left: 50%;
transform: translate(-50%, 0);
}
Working jsfiddle comparison here.
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How to Truncate a string in PHP to the word closest to a certain number of characters?
...e a code snippet written in PHP that pulls a block of text from a database and sends it out to a widget on a webpage. The original block of text can be a lengthy article or a short sentence or two; but for this widget I can't display more than, say, 200 characters. I could use substr() to chop off...
How to disable margin-collapsing?
...apsing margins between adjacent elements
Collapsing margins between parent and child elements
Using a padding or border will prevent collapse only in the latter case. Also, any value of overflow different from its default (visible) applied to the parent will prevent collapse. Thus, both overflow: ...
Can I make a pull request on a gist on GitHub?
...rrently open a pull request on a Gist.
You can comment though on the Gist and ask the author to update the Gist from your fork.
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PHP validation/regex for URL
I've been looking for a simple regex for URLs, does anybody have one handy that works well? I didn't find one with the zend framework validation classes and have seen several implementations.
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Why can't you modify the data returned by a Mongoose Query (ex: findById)
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Btw @JohnnyHK just wanted to say thanks again. A year and a half later was helping a client debug something. He spent a weekend trying to figure something out, turns out it was because he was trying to modify the Mongoose Object ;P
– Toli
J...
Where can I get a “useful” C++ binary search algorithm?
... with the C++ STL containers, something like std::binary_search in the standard library's <algorithm> header, but I need it to return the iterator that points at the result, not a simple boolean telling me if the element exists.
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Static fields on a null reference in Java
...ase, Primary = main.getNull():
The Primary expression is evaluated, and the result is discarded. [...]
If the field is a non-blank final field, then the result is the value of the specified class variable in the class or interface that is the type of the Primary expression. [...]
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