大约有 44,993 项符合查询结果（耗时：0.0424秒） [XML]
How to elegantly deal with timezones
I have a website that is hosted in a different timezone than the users using the application. In addition to this, users can have a specific timezone. I was wondering how other SO users and applications approach this? The most obvious part is that inside the DB, date/times are stored in UTC. When on...
How to disable HTML links
...a link (in a portable way). You can use one of these techniques (each one with its own benefits and disadvantages).
CSS way
This should be the right way (but see later) to do it when most of browsers will support it:
a.disabled {
pointer-events: none;
}
It's what, for example, Bootstrap 3.x...
Can I use if (pointer) instead of if (pointer != NULL)?
Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have to use if(pointer != NULL) ?
...
What is the proper REST response code for a valid request but an empty data?
For example you run a GET request for users/9 but there is no user with id #9.
Which is the best response code?
23 Answer...
Do spurious wakeups in Java actually happen?
...
The Wikipedia article on spurious wakeups has this tidbit:
The pthread_cond_wait() function in Linux is implemented using the futex system call. Each blocking system call on Linux returns abruptly with EINTR when the process receives a signal. ... pthread_cond_wait() can't re...
Return all enumerables with yield return at once; without looping through
...tion to get validation errors for a card. My question relates to dealing with GetErrors. Both methods have the same return type IEnumerable<ErrorInfo> .
...
Any reason to clean up unused imports in Java, other than reducing clutter?
...ny good reason to avoid unused import statements in Java? As I understand it, they are there for the compiler, so lots of unused imports won't have any impacts on the compiled code. Is it just to reduce clutter and to avoid naming conflicts down the line?
...
Django Passing Custom Form Parameters to Formset
...eanest approach, and doesn't affect ServiceForm in any way (i.e. by making it difficult to subclass).
share
|
improve this answer
|
follow
|
...
Check whether number is even or odd
...
You can use the modulus operator, but that can be slow. If it's an integer, you can do:
if ( (x & 1) == 0 ) { even... } else { odd... }
This is because the low bit will always be set on an odd number.
...
How to check if a stored procedure exists before creating it
...to be run every time a client executes the "database management" functionality. The script includes creating stored procedures on the client database. Some of these clients might already have the stored procedure upon running the script, and some may not. I need to have the missing stored procedure...