大约有 30,000 项符合查询结果（耗时：0.0348秒） [XML]
How to use count and group by at the same select statement
...
The other way is:
/* Number of rows in a derived table called d1. */
select count(*) from
(
/* Number of times each town appears in user. */
select town, count(*)
from user
group by town
) d1
sha...
How to find what code is run by a button or element in Chrome using Developer Tools
...cond event of a jQuery.event.trigger() and
// when an event is called after a page has unloaded
return typeof jQuery !== strundefined && jQuery.event.triggered !== e.type ?
jQuery.event.dispatch.apply( elem, arguments ) : undefined;
};
}
...
CharSequence VS String in Java?
...
Except when Android passes me a CharSequence in a callback and I need a String - call charSeq.toString().
– Martin Konicek
Jul 7 '11 at 11:09
...
@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)
...g. It gives you better reporting if you make one of these mistakes.
You call the static when method, but don't complete the stubbing with a matching thenReturn, thenThrow or then. (Error 1 in the code below)
You call verify on a mock, but forget to provide the method call
that you are trying to...
Parse query string in JavaScript [duplicate]
...mentById('output');
function output(msg) {
msg = Array.prototype.slice.call(arguments, 0).join("\n");
if($output) $output.innerHTML += "\n" + msg + "\n";
else console.log(msg);
}
var results = {}; // save results, so we can confirm we're not incorrectly referencing
$.each(tests, function...
What's the difference between Invoke() and BeginInvoke()
...ly, on a threadpool thread.
Control.Invoke: Executes on the UI thread, but calling thread waits for completion before continuing.
Control.BeginInvoke: Executes on the UI thread, and calling thread doesn't wait for completion.
Tim's answer mentions when you might want to use BeginInvoke - although ...
Is there a wikipedia API just for retrieve content summary?
... It is very recommendable to use &redirects=1 which redirects automatically to content of synonyms
– joecks
Feb 13 '16 at 14:42
8
...
How to add an object to an array
...
JavaScript is case-sensitive. Calling new array() and new object() will throw a ReferenceError since they don't exist.
It's better to avoid new Array() due to its error-prone behavior.
Instead, assign the new array with = [val1, val2, val_n]. For objects...
How to install trusted CA certificate on Android device?
...cates on different versions of Android devices (among other devices).
Basically you'll need to:
Download: the cacerts.bks file from your phone.
adb pull /system/etc/security/cacerts.bks cacerts.bks
Download the .crt file from the certifying authority you want to allow.
Modify the cacerts.bks fil...
What is a message pump?
...GetMessage() Win32 API retrieves a message from Windows. Your program typically spends 99.9% of its time there, waiting for Windows to tell it something interesting happened. TranslateMessage() is a helper function that translates keyboard messages. DispatchMessage() ensures that the window proce...