大约有 48,000 项符合查询结果（耗时：0.0860秒） [XML]
Get url without querystring
...omponent( is another awesome method for getting parts of a Uri. I didn't know about these two until now!
– AaronLS
Oct 19 '17 at 21:06
add a comment
|
...
Any way to clear python's IDLE window?
I know there's a similar topic about python console, but I do not know if they are the same. I tried system("clear") and it didn't work here.
...
What's the difference between String(value) vs value.toString()
...
String(o);
} catch (e) {
alert(e); // TypeError
}
If you want to know more about this mechanism I would recommend looking at the ToPrimitive and the ToString internal operations.
I also recommend reading this article:
Object-to-Primitive Conversions in JavaScript
...
What is the proper way to re-attach detached objects in Hibernate?
....getYetAnotherEntity(), you may have a LazyInit exception. The only way I know to overcome that is to use find. entity = em.find(entity.getClass(), entity.getId();
– John Rizzo
Mar 29 '11 at 9:16
...
Use cases for the 'setdefault' dict method
...or them:
headers = parse_headers( msg ) # parse the message, get a dict
# now add all the optional headers
for headername, defaultvalue in optional_headers:
headers.setdefault( headername, defaultvalue )
share
...
Java Constructor Inheritance
I was wondering why in java constructors are not inherited? You know when you have a class like this:
10 Answers
...
Do the parentheses after the type name make a difference with new?
...
Can someone add what is the case in C++11 now?
– legends2k
Aug 21 '12 at 4:39
...
Simplest way to detect a mobile device in PHP
...
this answer is now so obsolete. there are many false positives, safari on OSX is detected as a mobile, Chrome on OSX detected as Mobile.
– DevZer0
May 25 '16 at 14:21
...
Nullable type issue with ?: Conditional Operator
...ked a bunch of times already. The compiler is telling you that it doesn't know how convert null into a DateTime.
The solution is simple:
DateTime? foo;
foo = true ? (DateTime?)null : new DateTime(0);
Note that Nullable<DateTime> can be written DateTime? which will save you a bunch of typin...
Programmatically relaunch/recreate an activity?
...
I used to utilze recreate() but now I see an odd problem where radio buttons do not get reset when recreating, but they do when finish(); startActivity(getIntent()); so I'm using this for now and see how it works over the next days or weeks.
...