大约有 40,000 项符合查询结果（耗时：0.0442秒） [XML]
HTML anchor link - href and onclick both?
...href attribute, I'd return "-1" to prevent the default action, which is usually the browser jumping tot he top of the page, or sometimes I'd just not return anything. Lately I've had to revise all those pages as @Amber advised... to specifically return false, if I don't want the page to jump.
...
How to access a dictionary element in a Django template?
...
Attribute lookup (e.g., foo.bar)
Method call (e.g., foo.bar())
List-index lookup (e.g., foo[2])
The system uses the first lookup type
that works. It’s short-circuit logic.
share
|
...
Is it safe to parse a /proc/ file?
.../proc/mounts was a consistent snapshot.
For example:
/proc/uptime is totally atomic, as someone mentioned in another answer -- but only since Linux 2.6.30, which is less than two years old. So even this tiny, trivial file was subject to a race condition until then, and still is in most enterpris...
How to dump a dict to a json file?
...
you can supply all those parameters to dump(sample, file, ...) too. The extra step of writing to a string is not needed. dump internally writes in chunks. This could be more efficient than to compile a (possibly huge) string first.
...
Is git-svn dcommit after merging in git dangerous?
...ll the changes from the svn-branch squashed into one commit waiting in the index
git commit
share
|
improve this answer
|
follow
|
...
Mocking python function based on input arguments
...f side_effect is a function then whatever that function returns is
what calls to the mock return. The side_effect function is called with
the same arguments as the mock. This allows you to vary the return
value of the call dynamically, based on the input:
>>> def side_effect(value):
...
When should I use cross apply over inner join?
... tables. Yes... that usually works, and often a good option as they can be indexed and fast, but performance can also drop due to to UPDATE statements not being parallel and not allowing to cascade formulas (reuse results) to update several fields within the same statement. And sometimes you'd just ...
Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
...
def difficulty(word):
unique = set(word)
positions = sum(letters.index(c) for c in word)
return len(word) * len(unique) * (7 - len(unique & vowels)) * positions
words = ['the', 'potato', 'school', 'egypt', 'floccinaucinihilipilification']
for word in words:
print difficulty(...
How can I initialize base class member variables in derived class constructor?
...ince it would destroy encapsulation. Instead, create a constructor in A to allow B (or any subclass of A) to initialize them:
class A
{
protected:
A(int a, int b) : a(a), b(b) {} // Accessible to derived classes
// Change "protected" to "public" to allow others to instantiate A.
private:
...
Can I get a patch-compatible output from git-diff?
...is (I think) from using git reset -- the relationships among the repo, the index, and the working area are the issue.
– Malvolio
Sep 5 '14 at 19:39
add a comment
...