大约有 12,000 项符合查询结果（耗时：0.0340秒） [XML]
How to cherry-pick from a remote branch?
...
Adding remote repo (as "foo") from which we want to cherry-pick
$ git remote add foo git://github.com/foo/bar.git
Fetch their branches
$ git fetch foo
List their commits (this should list all commits in the fetched foo)
$ git log foo/master
...
How do I declare class-level properties in Objective-C?
...s equivalent to a static variable? E.g. only one instance for all types of Foo?
To declare class functions in Objective-C you use the + prefix instead of - so your implementation would look something like:
// Foo.h
@interface Foo {
}
+ (NSDictionary *)dictionary;
// Foo.m
+ (NSDictionary *)dicti...
What are the differences between type() and isinstance()?
...a common use-case for constructors). If you check for type like this:
def foo(data):
'''accepts a dict to construct something, string support in future'''
if type(data) is not dict:
# we're only going to test for dicts for now
raise ValueError('only dicts are supported for n...
What does enumerable mean?
...}
A for..in loop then iterates through the object's property names.
var foo = { bar: 1, baz: 2};
for (var prop in foo)
console.log(prop); // outputs 'bar' and 'baz'
But, only evaluates its statement – console.log(prop); in this case – for those properties whose [[Enumerable]] attribute...
What are the rules for calling the superclass constructor?
...er than "super()".
class SuperClass
{
public:
SuperClass(int foo)
{
// do something with foo
}
};
class SubClass : public SuperClass
{
public:
SubClass(int foo, int bar)
: SuperClass(foo) // Call the superclass constructor in the sub...
Elegant solution to duplicate, const and non-const, getters? [duplicate]
... object itself is non-const, and casting away the const is allowed.
class Foo
{
public:
const int& get() const
{
//non-trivial work
return foo;
}
int& get()
{
return const_cast<int&>(const_cast<const Foo*>(this)->get());
}
...
What exactly is a reentrant function?
...:
#include <mutex>
typedef void (*callback)();
std::mutex m;
void foo(callback f)
{
m.lock();
// use the resource protected by the mutex
if (f) {
f();
}
// use the resource protected by the mutex
m.unlock();
}
Another function could well need to lock the ...
Convert nested Python dict to object?
...nch import bunchify
>>> d = {'a': 1, 'b': {'c': 2}, 'd': ["hi", {'foo': "bar"}]}
>>> x = bunchify(d)
>>> x.a
1
>>> x.b.c
2
>>> x.d[1].foo
'bar'
A Python 3 library is available at https://github.com/Infinidat/munch - Credit goes to codyzu
...
When should you use a class vs a struct in C++?
... classes are absolutely equivalent in every way except their name:
struct Foo
{
int x;
};
class Bar
{
public:
int x;
};
You can even switch keywords when redeclaring:
class Foo;
struct Bar;
(although this breaks Visual Studio builds due to non-conformance, so that compiler will emit a w...
Fork and synchronize Google Code Subversion repository into GitHub
...lone the Subversion repository and push to the Git:
git svn clone https://foo.googlecode.com/svn/ git-foo
cd git-foo
git remote add git-foo git@github.com:username/foo.git
git push git-foo master
After committing in the Subversion repository, run
cd /path/to/git-foo
git svn fetch
git svn reba...