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Cross cutting concern example
...oncerns are typically implementation details that need to be kept separate from business logic.
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Changing one character in a string
...probably:
text = "Z" + text[1:]
The text[1:] returns the string in text from position 1 to the end, positions count from 0 so '1' is the second character.
edit:
You can use the same string slicing technique for any part of the string
text = text[:1] + "Z" + text[2:]
Or if the letter only appe...
How do I implement a callback in PHP?
...
It would be helpful to readers coming from Python programming to point out in the answer that 'someGlobalFunction' indeed is a defined function.
– TMOTTM
Apr 2 '13 at 13:45
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Rebase array keys after unsetting elements
... HTML form. If you are relying on unique key values to identify the output from a form, one of the methods below works better.
– user1239087
Feb 20 '17 at 0:09
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Should arrays be used in C++?
...ated to the above, the compiler can calculate the actual
size of the array from the initializers. You don't have to count them.
If you have access to C++11, std::array solves the first two issues,
and should definitely be used in preference to C style arrays in the
first case. It doesn't address...
How can I check if multiplying two numbers in Java will cause an overflow?
...ve (where? embedded Java?) then perhaps you should extract just this class from Guava. Is copying an untested answer from StackOverflow better than copying Guava's carefully tested code?
– Rich
Aug 10 '15 at 12:48
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Should I use a data.frame or a matrix?
...haring @Gavin Simpson! Could you introduce a bit more about how to go back from 1-6 to a-f?
– YJZ
Jul 20 '15 at 14:40
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jQuery SVG vs. Raphael [closed]
...e its shaping up to be pretty slick (there are a few samples of the output from the early versions on Flickr).
However, just to throw another possible contender into the SVG library mix, Google's SVG Web looks very promising indeed (even though I'm not a big fan of Flash, which it uses to render in...
throws Exception in finally blocks
...e useful if you're letting exceptions bubble up and you can't log anything from within your method (e.g. because it's a library and you'd rather let the calling code handle exceptions and logging):
Resource resource = null;
boolean isSuccess = false;
try {
resource = Resource.create();
reso...
Correct Bash and shell script variable capitalization
...17 consist solely of uppercase letters, digits, and the
underscore ( _ ) from the characters defined in Portable Character Set
and do not begin with a digit.
...
The name space of environment variable names containing lowercase letters is
reserved for applications. Applications can defin...