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How do I get a PHP class constructor to call its parent's parent's constructor?
...ortcut for it. Also, this ruins the encapsulation of the Papa class - when reading or working on Papa, it should be safe to assume that the __construct() method will be called during construction, but the Kiddo class does not do this.
...
Unescape HTML entities in Javascript?
...Sanitizing HTML code is a tricky affair and innerHTML doesn't even try - already because the web page might actually intend to set inline event handlers. This simply isn't a mechanism intended for unsafe data, full stop.
– Wladimir Palant
Aug 7 '16 at 14:48
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Is there something like Annotation Inheritance in java?
...
Unfortunately, no. Apparently it has something to do with programs that read the annotations on a class without loading them all the way. See Why is it not possible to extend annotations in Java?
However, types do inherit the annotations of their superclass if those annotations are @Inherited.
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Using try vs if in python
...BYL style ("look before you leap"). To me, it's a matter of efficiency and readability.
In your example (say that instead of returning a list or an empty string, the function were to return a list or None), if you expect that 99 % of the time result will actually contain something iterable, I'd use...
PDO's query vs execute
... The link leads to the question with quite stupid answer, already criticized in comments.
– Your Common Sense
Jan 16 '11 at 15:59
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
...se look at the video tutorial here.
This is a research project so you can read about used algorithms here.
Behold! :-)
Finding a meaningful regex/solution from examples is possible if and only if the provided examples describe the problem well.
Consider these examples that describe an extraction ...
How to use Class in Java?
... type declaration <T> is not required at method level, since it is already declared at class level.
class MyClass<T> {
private T myMethod(T a){
return a;
}
}
But below is wrong as class-level type parameters K, V, Z, and Y cannot be used in a static context (static meth...
what's data-reactid attribute in html?
...ecause all tag and attribute names are automatically lowercased as they're read anyway. So in HTML you can use uppercase letters, but in JS it'll all end up lowercase. w3.org/TR/2010/WD-html5-20101019/…
– Peeja
Mar 18 '16 at 14:32
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Determine distance from the top of a div to top of window with javascript
...ng to write answer anyway because just like me, people sometimes forget to read the comments.
So, if you just want to get an element's distance (in Pixels) from the top of your screen window, here is what you need to do:
// Fetch the element
var el = document.getElementById("someElement");
use...
How to show the “Are you sure you want to navigate away from this page?” when changes committed?
...eturn true;
};
// Remove navigation prompt
window.onbeforeunload = null;
Read below for legacy browser support.
Update (2013)
The orginal answer is suitable for IE6-8 and FX1-3.5 (which is what we were targeting back in 2009 when it was written), but is rather out of date now and won't work in m...