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Center a popup window on screen?
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SINGLE/DUAL MONITOR FUNCTION (credit to http://www.xtf.dk - thank you!)
UPDATE: It will also work on windows that aren't maxed out to the screen's width and height now thanks to @Frost!
If you're on dual monitor, the window will center horizontally, but not vertically.....
What is the HTML tag “div” short for?
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http://www.w3.org/TR/REC-html32#block
Document division
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upstream sent too big header while reading response header from upstream
...t in stderr: "PHP message: PHP Notice: Undefined index: Firstname in /srv/www/classes/data_convert.php on line 1090
PHP message: PHP Notice: Undefined index: Lastname in /srv/www/classes/data_convert.php on line 1090
... // 20 lines of same
PHP message: PHP Notice: Undefined index: Firstname in /...
Using psql how do I list extensions installed in a database?
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In psql that would be
\dx
See the manual for details: http://www.postgresql.org/docs/current/static/app-psql.html
Doing it in plain SQL it would be a select on pg_extension:
SELECT *
FROM pg_extension
http://www.postgresql.org/docs/current/static/catalog-pg-extension.html
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Error installing mysql2: Failed to build gem native extension
...helps!
Using MySQL with Rails 3 on Windows
Install railsinstaller -> www.railsinstaller.org (I installed it to c:\Rails)
Install MySQL (I used MySQL 5.5) -> dev.mysql.com/downloads/installer/
--- for mySQL installation ---
If you dont already have these two files installed you might...
wget command to download a file and save as a different filename
...l listed. Notice the uppercase O. Full command line to use could be:
wget www.examplesite.com/textfile.txt --output-document=newfile.txt
or
wget www.examplesite.com/textfile.txt -O newfile.txt
Hope that helps.
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BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...MODE | BTF_ATTACHREPORT | BTF_SCREENCAPTURE);
BT_SetSupportServer(_T("www.tsingfun.com"), 9999);
BT_SetSupportURL(_T("https://www.tsingfun.com"));
// 最新的Log文件附上
TCHAR szLogFile[MAX_PATH] = { 0 };
GetCurrentDirectory(MAX_PATH, szLogFile);
SYSTEMTIME sys;
GetLocalTi...
【笔记】如何训练自己的专属AI机器人之：Dify vs Coze - 人工智能(AI) - 清...
...不过Coze背靠国内大厂，资金雄厚！
参考：
https://www.53ai.com/news/qianyanjishu/1417.html
https://twitter.com/prompten/status/1729348430340968497
https://www.53ai.com/news/qianyanjishu/1417.html
Any decent text diff/merge engine for .NET? [closed]
...'m currently testing another Codeproject-Project you can find here: http://www.codeproject.com/KB/applications/patch.aspx
It's using some DLLs from Microsoft for patching, so it looks interesting. But those DLLs are unmanaged and this project is only some sort of wrapper for it. But maybe it can hel...
Postgresql aggregate array
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Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1
SELECT s.name, array_agg(g.Mark) as marks
FROM student s
LEFT JOIN Grade g ON g.Student_id = s.Id
GROUP BY s.Id
By the way, if you are using Postgres 9.1, you don't need to repeat the...