大约有 15,468 项符合查询结果（耗时：0.0253秒） [XML]
How to check if element exists using a lambda expression?
...
@MalteHartwig tested in a 10kk ArrayList with a simple object trying to find the last element. gives a 2ms difference 131ms against 133ms for your. on a 1kk array list yours if faster by 2ms (55ms to 53ms). So we can say that yours is bett...
.NET - Dictionary locking vs. ConcurrentDictionary
... how to use them the parallel extensions.
I've just spent the last week testing the ConcurrentDictionary using 32 threads to perform I/O. It seems to work as advertised, which would indicate a tremendous amount of testing has been put into it.
Edit: .NET 4 ConcurrentDictionary and patterns.
Mi...
XmlSerializer giving FileNotFoundException at constructor
...
The problem is that this fails my test, so I cannot just "ignore" the exception
– Csaba Toth
Jun 28 '13 at 16:08
16
...
How to initialize HashSet values by construction?
...rected for Java diamond notation as you mentioned, but didn't have time to test it. If anyone can doublecheck that would be awesome. Main concern is the hashset to set assignment, the HashSet constructor may need an explicit generic type.
– Gennadiy
Jul 25 '17 ...
Make header and footer files to be included in multiple html pages
...ers support HTML Templates for doing this.
I've built a little example:
Tested OK in Chrome 61.0, Opera 48.0, Opera Neon 1.0, Android Browser 6.0, Chrome Mobile 61.0 and Adblocker Browser 54.0
Tested KO in Safari 10.1, Firefox 56.0, Edge 38.14 and IE 11
More compatibility info in canisue.com
...
How can I get a JavaScript stack trace when I throw an exception?
... currentBrowser = {
firefox: /firefox/gi.test(sUA),
webkit: /webkit/gi.test(sUA),
},
aLines = Console.stackTrace().split("\n"),
aCurrentLine,
iCurrIndex = ((currentBrowser.webkit) ? ...
How to change column order in a table using sql query in sql server 2005?
...es. A simple example below:
http://sqlfiddle.com/#!3/67af4/1
CREATE TABLE TestTable (
Column1 INT,
Column2 VARCHAR(255)
);
GO
insert into TestTable values(1, 'Test1');
insert into TestTable values(2, 'Test2');
GO
select * from TestTable;
GO
ALTER TABLE TestTable ADD Column2_NEW VARCHAR(2...
How to output only captured groups with sed?
...)[^0-9]*/\1 /gp'
123 456
That works for any count of digit runs:
$ str='Test Num(s) 123 456 7899900 contained as0018166df in text'
$ echo "$str" | sed -En 's/[^0-9]*([0-9]{1,})[^0-9]*/\1 /gp'
123 456 7899900 0018166
Which is very similar to the grep command:
$ str='Test Num(s) 123 456 7899900 ...
How to generate a core dump in Linux on a segmentation fault?
...ctl.conf and reloading by sysctl -p.
If the core files are not generated (test it by: sleep 10 & and killall -SIGSEGV sleep), check the limits by: ulimit -a.
If your core file size is limited, run:
ulimit -c unlimited
to make it unlimited.
Then test again, if the core dumping is successful...
Search all tables, all columns for a specific value SQL Server [duplicate]
...: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripod.com
-- Updated and tested by Tim Gaunt
-- http://www.thesitedoctor.co.uk
-- http://blogs.thesitedoctor.co.uk/tim/2010/02/19/Search+Every+Table+And+Field+In+A+SQL+Server+Database+Updated.aspx
-- Tested on: SQL Server 7.0, SQL Server 2000, SQL Se...