大约有 13,700 项符合查询结果（耗时：0.0272秒） [XML]
Difference between object and class in Scala
...// Prefix to call
def m(x: Int) = X.f(x)
// Import and use
import X._
def n(x: Int) = f(x)
private def o = 2
}
object X {
private def f(x: Int) = x * x
// object X can see private members of class X
def g(x: X) = {
import x._
x.o * o // fully specified and imported
}
}...
Saving vim macros
... character. A literal <ESC> doesn't work
– adam_0
Jan 28 '14 at 1:33
5
...
How to recover a dropped stash in Git?
...ash commit you dropped, you can apply it as a stash:
git stash apply $stash_hash
Or, you can create a separate branch for it with
git branch recovered $stash_hash
After that, you can do whatever you want with all the normal tools. When you’re done, just blow the branch away.
Finding the hash
If ...
Correct way to use get_or_create?
I'm trying to use get_or_create for some fields in my forms, but I'm getting a 500 error when I try to do so.
5 Answers
...
is not JSON serializable
... filled with django objects:
data = serializers.serialize('json', self.get_queryset())
return HttpResponse(data, content_type="application/json")
In your case, self.get_queryset() contains a mix of django objects and dicts inside.
One option is to get rid of model instances in the self.get_query...
How do I cast a variable in Scala?
...is not of the given type:
g match {
case g2: Graphics2D => g2
case _ => throw new ClassCastException
}
This block replicates the semantics of the asInstanceOf[Graphics2D] method, but with greater flexibility. For example, you could provide different branches for various types, effectiv...
Why are Oracle table/column/index names limited to 30 characters?
...page... http://stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/ap_standard_sql001.htm
(Looking for a ref)
share
|
improve this answer
|
follow
|
...
Explain the encapsulated anonymous function syntax
...unction (x, y) {
return x * y;
};
4- A named function expression func_name, assigned to the variable multiply:
var multiply = function func_name(x, y) {
return x * y;
};
share
|
improve ...
What is a word boundary in regex?
...tring if it begins or ends (respectively) with a word character ([0-9A-Za-z_]).
So, in the string "-12", it would match before the 1 or after the 2. The dash is not a word character.
share
|
improv...
Setup a Git server with msysgit on Windows [closed]
...where you choose between the Git
ssh and PuTTY ssh. You'll have to
set GIT_SSH manually if you use PuTTY.
I didn't follow one part of the
instructions and that was installing
Tortoise - I used the command line
instead as that's how I prefer to
learn a vcs like I did with rcs and Subversion and
foun...