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What is the difference between NaN and None?
...value NaN (Not-A-Number) is used everywhere as the NA value, and there are API functions isnull and notnull which can be used across the dtypes to detect NA values.
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Thus, I have chosen the Pythonic “practicality beats purity” approach and traded integer NA capability for a much simpler a...
What's the deal with a leading underscore in PHP class methods?
...e its parent's protected method public. It's an edge case, but it happens. API developers may also choose to expose a private method as public, meaning they'd have to refactor the method name in addition to changing the access modifier. No biggie, but a nuisance nonetheless.
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Copy constructor versus Clone()
... is almost as unclear as the ICloneable interface - you'd have to read the API docs/code to know it does a deep clone or not. I just define an IDeepCloneable<T> interface with a DeepClone() method.
– Kent Boogaart
Jul 27 '10 at 15:56
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PHP random string generator
...PHP 5.x, we wrote a PHP 5 polyfill for random_int() so you can use the new API even before you upgrade to PHP 7.
Safely generating random integers in PHP isn't a trivial task. You should always check with your resident StackExchange cryptography experts before you deploy a home-grown algorithm in p...
What are MVP and MVC and what is the difference?
...bstraction and complete isolation of any GUI related (view stuff) from the API of the presenter. One minor point: A master presenter could be used where there is only one presenter, rather than one per view, but your diagram is the cleanest. IMO, the biggest difference between MVC/MVP is that MVP ...
Using querySelectorAll to retrieve direct children
...s you can also skip .querySelectorAll and use other good old-fashioned DOM API features. For example, instead of myDiv.querySelectorAll(":scope > *") you could just write myDiv.children, for example.
Otherwise if you can't yet rely on :scope, I can't think of another way to handle your situation...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...AssignableFrom(int.class) // true
See http://java.sun.com/javase/6/docs/api/java/lang/Class.html#isAssignableFrom(java.lang.Class).
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How to add facebook share button on my website?
...ry Library, I would preferred Google Library
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></script>
Add share dialog box (You can customize this dialog box by setting up parameters
<script type="text/javascript">
$(document).r...
Store JSON object in data attribute in HTML jQuery
...elps anyone, here's how to access the above: $('div').data('foobar').foo. api.jquery.com/data
– Gary
Aug 14 '13 at 3:40
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Android - shadow on text?
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public void setTextAppearance (Context context, int resid)
Since: API Level 1
Sets the text color, size, style, hint color, and
highlight color from the specified TextAppearance resource.
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