大约有 31,100 项符合查询结果（耗时：0.0398秒） [XML]
Angular.js programmatically setting a form field to dirty
I am programmatically updating some of the fields on my form with a value and I would like to set the field state to $dirty . Doing something like:
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Get an object properties list in Objective-C
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I just managed to get the answer myself. By using the Obj-C Runtime Library, I had access to the properties the way I wanted:
- (void)myMethod {
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([self class], &outCou...
Count(*) vs Count(1) - SQL Server
...do too.
SYS_GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL....
How do I vertically center text with CSS? [duplicate]
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Only 3rd approach works well on my Firefox 22.0, however it does not work for all browsers. First 2 approaches stop working properly once I change height size for the div
– YMC
Jul 30 '13 at 22:28
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(SC) DeleteService FAILED 1072
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@Alfabravo: Same thing happened to me, although in my case I had the "Services" window open. As soon as I closed it I was golden.
– Cory Grimster
Apr 4 '11 at 20:17
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When NOT to use yield (return) [duplicate]
... : Enumerable.Empty<UserRight>();
}
Update
Here's the results of my benchmark:
These results show how long it took (in milliseconds) to perform the operation 1,000,000 times. Smaller numbers are better.
In revisiting this, the performance difference isn't significant enough to worry ab...
how to check and set max_allowed_packet mysql variable [duplicate]
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max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, but it's unlikely this will ...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
Let's say the bottleneck of my Java program really is some tight loops to compute a bunch of vector dot products. Yes I've profiled, yes it's the bottleneck, yes it's significant, yes that's just how the algorithm is, yes I've run Proguard to optimize the byte code, etc.
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How to exclude this / current / dot folder from find “type d”
...es a variable for DRYness:
D="long_name"
find "$D" ! -path "$D" -type d
My decision tree between ! and -mindepth:
script? Use ! for portability.
interactive session on GNU?
exclude .? Throw a coin.
exclude long_name? Use -mindepth.
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How to permanently disable region-folding in Visual Studio 2008
Anyone know how to turn off code folding in visual studio 2008? Some of my colleagues love it, but I personally always want to see all the code, and never want code folded out of sight. I'd like a setting that means my copy of Visual Studio never folds #regions or function bodies.
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