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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
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These events are called in the following order:
beforeTextChanged(CharSequence s, int start, int count, int after).
This means that the characters are about to be replaced with some new text. The text is uneditable.
Use: when you need to ta...
jQuery click events firing multiple times
...nbind() is deprecated and you should use the .off() method instead. Simply call .off() right before you call .on().
This will remove all event handlers:
$(element).off().on('click', function() {
// function body
});
To only remove registered 'click' event handlers:
$(element).off('click').o...
Why is there an injected class name?
...turn X(); }
};
Is the create() function creating a temporary X object or calling the function X? At namespace scope it would call the function, so the purpose of the injected-class-name is to ensure that within the body of X the name always finds the class itself (because name lookup starts in the...
PHP Sort a multidimensional array by element containing date
...ata is organized in an array of arrays. To better distinguish those, let's call the inner arrays (data) records, so that your data really is an array of records.
usort will pass two of these records to the given comparison function date_compare() at a a time. date_compare then extracts the "dateti...
Why can I initialize a List like an array in C#?
...t has a method named Add(...)
What happens is the default constructor is called, and then Add(...) is called for each member of the initializer.
Thus, these two blocks are roughly identical:
List<int> a = new List<int> { 1, 2, 3 };
And
List<int> temp = new List<int>();...
Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms
...oing to try to fight linguistic necessity here. I will, however, generally call them "regexes" (or "regexen", when I'm in an Anglo-Saxon mood).
"Regular expression can only match regular languages", as you can see, is nothing more than a commonly stated fallacy.
So, why not then?
A good reason ...
Convert a String In C++ To Upper Case
...form extremely badly with g++ 5.2 -O3, and Boost 1.58 (like 30x worse than calling glibc's toupper in a loop.) There's a dynamic_cast of the locale that doesn't get hoisted out of the per-char loop. See my answer. On the plus side, this may be properly UTF-8 aware, but the slowdown doesn't come f...
Execute AsyncTask several times
...m AsyncTask and a parameter which is an instance of that AsyncTask. When I call mInstanceOfAT.execute("") everything is fine.
But the app crash when I press an update button which calls again the AsyncTask(In case the network job didnt work). Cause then appears an Exception which says
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What command opens Ruby's REPL?
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There are several REPLs for Ruby.
The standard library ships with a REPL called IRb (for Interactive Ruby), which installs a program named irb, but since it is just a Ruby library, it can also be invoked from Ruby code and not just from the shell. On Rubinius, IRb can also be invoked by just calli...
How to determine whether an object has a given property in JavaScript
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Or even better — Object.prototype.hasOwnProperty.call(x, 'y'), so that property named "hasOwnProperty" would not conflict with inspection process ;)
– kangax
Dec 24 '09 at 14:03
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