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A better similarity ranking algorithm for variable length strings
...rites in the "addendum" (bottom of the page).
– Fred Foo
Sep 4 '12 at 11:54
4
This returns a "sco...
Wrapping null-returning method in Java with Option in Scala?
...method that does exactly that:
var myOptionalString = Option(session.get("foo"));
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Why doesn't Mockito mock static methods?
...ever talking about that old school Singleton pattern where everybody calls Foo.getInstance() everywhere. I just wrote singleton in the answer to counter the argument "but a static method does not require the creation of many wrapper objects". Also conceptually to me there is little difference betwee...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...
C# example to error at compile time.
class Foo
{
const char Sum = (1000 + 1) * 1000 / 2;
}
Produces the following compilation error:
Constant value '500500' cannot be converted to a 'char'
...
python setup.py uninstall
...gs -0 sudo rm -f --
And for windows:
python setup.py bdist_wininst
dist/foo-1.0.win32.exe
There are also unsolvable problems with uninstalling setup.py install which won't bother you in a typical case. For a more complete answer, see this wiki page:
https://ofswiki.org/wiki/Uninstalling_setup....
Is PHP's count() function O(1) or O(n) for arrays?
...
For example,
$cnt = count($array);
for ($i =0; $i < $cnt; $i++) {
foo($array[$i]);
}
Additionally, you can't always be sure count is being called on an array. If it's called on an object that implements Countable for example, the count method of that object will be called.
...
How do I use CSS in Django?
...e template -- say, an image inside an image folder from /site_media/images/foo.gif.
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Check if a variable is a string in JavaScript
... against it is that it 'fails' for object-wrapped strings like new String('foo'), but that doesn't matter because object-wrapped strings are a worthless feature that you shouldn't be using. The Google style guide forbids them, Douglas Crockford wants them deprecated, and no libraries use them. Prete...
e.printStackTrace equivalent in python
... = logging.getLogger()
logger.setLevel(logging.DEBUG)
def f():
a = { 'foo': None }
# the following line will raise KeyError
b = a['bar']
def g():
f()
try:
g()
except Exception as e:
logger.error(str(e), exc_info=True)
And it will output:
'bar'
Traceback (most recent cal...
What is the difference between memmove and memcpy?
...ove can handle overlapping memory, memcpy can't.
Consider
char[] str = "foo-bar";
memcpy(&str[3],&str[4],4); //might blow up
Obviously the source and destination now overlap, we're overwriting
"-bar" with "bar". It's undefined behavior using memcpy if the source
and destination overlap ...