大约有 48,000 项符合查询结果（耗时：0.0602秒） [XML]
django models selecting single field
... a good optimization technique, but make sure that you do not create these extra queries. Otherwise you will lose performance instead of gaining it.
– Eerik Sven Puudist
Jul 19 at 18:47
...
Programmatically select text in a contenteditable HTML element?
...
For extra compatibilty you should call selectElementContents() in a setTimeout() or requestAnimationFrame() if called from an onfocus. See jsfiddle.net/rudiedirkx/MgASG/1/show
– Rudie
Apr 4 ...
Match multiline text using regular expression
...end of each line (otherwise they only match at the start/end of the entire string).
Pattern.DOTALL or (?s) tells Java to allow the dot to match newline characters, too.
Second, in your case, the regex fails because you're using the matches() method which expects the regex to match the entire strin...
Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
....
<uniqueKey>id</uniqueKey>
<field name="solr_name" type="string" indexed="true" stored="true" />
Implementation
Indexing
This is where the real deal is. You need to do the indexing of data from MySQL to Solr inorder to make use of Solr Queries.
Step 1: Go to Solr Admin ...
How to test an SQL Update statement before running it?
...s a repeat of other answers, but it has some emotional support to take the extra step for testing update :D
For testing update, hash # is your friend.
If you have an update statement like:
UPDATE
wp_history
SET history_by="admin"
WHERE
history_ip LIKE '123%'
You hash UPDATE and SET out for tes...
Save bitmap to location
...ssion rate of 85% :
// Assume block needs to be inside a Try/Catch block.
String path = Environment.getExternalStorageDirectory().toString();
OutputStream fOut = null;
Integer counter = 0;
File file = new File(path, "FitnessGirl"+counter+".jpg"); // the File to save , append increasing numeric coun...
iOS Equivalent For Android Shared Preferences
...:
NSUserDefaults *preferences = [NSUserDefaults standardUserDefaults];
NSString *currentLevelKey = @"currentlevel";
if ([preferences objectForKey:currentLevelKey] == nil)
{
// Doesn't exist.
}
else
{
// Get current level
const NSInteger currentLevel = [preferences integerForKey:curr...
What is this weird colon-member (“ : ”) syntax in the constructor?
...oesn't have a function call syntax, it has a construction syntax (ala: new String("Name")). It fits in with the constructor better than Foo(int num) : m_Count = 5. Not to mention that classes must be constructed at this point anyway, since it's initialized here. Foo(int num) : Bar = num, wouldn't co...
Why does .NET use banker's rounding as default?
...s designers choose this as the default?", I just want to point out that an extra function is unnecessary.
Math.Round allows you to specify a MidpointRounding:
ToEven - When a number is halfway between two others, it is rounded toward the nearest even number.
AwayFromZero - When a number is halfwa...
How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
...control as unable to be rendered. Fixing the control (in my case it was an extra quote in the properties) and recompiling should regenerate the designer.
share
|
improve this answer
|
...