大约有 30,000 项符合查询结果（耗时：0.0515秒） [XML]
Difference between __getattr__ vs __getattribute__
...ement them both, but I'm not sure why you would. __getattribute__ will be called for every access, and __getattr__ will be called for the times that __getattribute__ raised an AttributeError. Why not just keep it all in one?
– Ned Batchelder
Oct 11 '11 at 18:...
Throw keyword in function's signature
...
That's just what it comes down to, you probably just will end up with a call to terminate() and your program dying a quick but painful death.
The GOTWs conclusion is:
So here’s what seems to be the best advice we as a community have learned as of today:
Moral #1: Never write an exc...
jQuery: Can I call delay() between addClass() and such?
...{
$(this).removeClass("error").dequeue();
});
The reason you need to call next or dequeue is to let jQuery know that you are done with this queued item and that it should move on to the next one.
share
|
...
What is difference between instantiating an object using new vs. without
...trast:
Time* t = new Time(12, 0, 0);
... allocates a block of memory by calling either ::operator new() or Time::operator new(), and subsequently calls Time::Time() with this set to an address within that memory block (and also returned as the result of new), which is then stored in t. As you kno...
What's the pythonic way to use getters and setters?
...ef x(self):
"""I'm the 'x' property."""
print("getter of x called")
return self._x
@x.setter
def x(self, value):
print("setter of x called")
self._x = value
@x.deleter
def x(self):
print("deleter of x called")
del self._x
c ...
Unauthorised webapi call returning login page rather than 401
How do I configure my mvc/webapi project so that a webapi method called from a razor view doesn't return the loginpage when its unauthorised?
...
Xcode 4.2 debug doesn't symbolicate stack call
... NSLog(@"CRASH: %@", exception);
NSLog(@"Stack Trace: %@", [exception callStackSymbols]);
// Internal error reporting
}
Next, add the exception handler to your app delegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
...
Is arr.__len__() the preferred way to get the length of an array in Python?
...__len__() is a method that object can implement. len(foo) usually ends up calling foo.__len__().
– Tim Lesher
Feb 5 '09 at 21:33
13
...
Changing iframe src with Javascript
...bably because you are using the wrong brackets here:
document.getElementById['calendar'].src = loc;
should be
document.getElementById('calendar').src = loc;
share
|
improve this answer
...
How to create an array containing 1…N
...
You can do so:
var N = 10;
Array.apply(null, {length: N}).map(Number.call, Number)
result: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
or with random values:
Array.apply(null, {length: N}).map(Function.call, Math.random)
result: [0.7082694901619107, 0.9572225909214467, 0.8586748542729765,
0...