大约有 47,000 项符合查询结果（耗时：0.0694秒） [XML]
Count, size, length…too many choices in Ruby?
... advise using length (or its alias size) rather than count if you want to know how many elements there are altogether.
Regarding ActiveRecord, on the other hand, there are important differences. check out this post:
Counting ActiveRecord associations: count, size or length?
...
Using the “animated circle” in an ImageView while loading stuff
..._LOADING_DIALOG);
fooThread = new FooThread(handler);
fooThread.start();
Now the thread does the work:
private class FooThread extends Thread {
Handler mHandler;
FooThread(Handler h) {
mHandler = h;
}
public void run() {
//Do all my work here....you might need a...
Performance difference between IIf() and If
...lete.
Like in C#, VB's conditional If operator short-circuits, so you can now safely write the following, which is not possible using the IIf function:
Dim len = If(text Is Nothing, 0, text.Length)
share
|
...
With bash, how can I pipe standard error into another process?
It's well known how to pipe the standard ouput of a process into another processes standard input:
5 Answers
...
how to stop browser back button using javascript
...
It's worth mentioning that things have now changed in modern browsers: see stackoverflow.com/questions/19926641/…
– devrobf
Jun 10 '16 at 12:25
...
CSS - How to Style a Selected Radio Buttons Label?
... You just killed keyboard access! hope all your users are able bodied. ...now, if you just keep the radio button there, without using display:none; then the browsers will make it work with keyboard just fine.
– gcb
Jul 29 '15 at 22:35
...
Nodejs cannot find installed module on Windows
...anks very much, the links you provided are very helpful, I am much clearer now, although the module-searching algorithm looks a bit complicated. Finally I use the environment variable NODE_PATH to reference the global module path, set NODE_PATH=C:\Documents and Settings\DevUser\Application Data\npm\...
Windows 7, 64 bit, DLL problems
...risP said, the problem was in my project dependencies. The key is "How to know your project dependencies in Qt 5?".
As I didn't find any clear way to know it (Dependency Walker didn't help me a lot...), I followed next the "inverse procedure" that takes no more than 5 minutes and avoid a lot of he...
ASP.NET MVC framework 4.5 CSS bundle does not work on the hosting
...
I know I'm 4 years late to this question but this worked for me.
public static void RegisterBundles(BundleCollection bundles)
{
...
BundleTable.EnableOptimizations = true; // Added this
}
...
SqlException from Entity Framework - New transaction is not allowed because there are other threads
...
We have now posted an official response to the bug opened on Connect. The workarounds we recommend are as follows:
This error is due to Entity Framework creating an implicit transaction during the SaveChanges() call. The best way t...