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How can I force clients to refresh JavaScript files?
...rver level, if you want to. The server can be configured to send different HTTP headers for javascript files.
For example, to force the file to be cached for no longer than 1 day, you would send:
Cache-Control: max-age=86400, must-revalidate
For beta, if you want to force the user to always get...
Design Patterns web based applications [closed]
...his is the simplest to implement. The (Business) Model works directly with HttpServletRequest and HttpServletResponse objects. You have to gather, convert and validate the request parameters (mostly) yourself. The View can be represented by plain vanilla HTML/CSS/JS and it does not maintain state ac...
CSS attribute selector does not work a href
...e to match the end of the string.
a[href$='.pdf'] { /*css*/ }
JSFiddle: http://jsfiddle.net/UG9ud/
E[foo] an E element with a "foo" attribute (CSS 2)
E[foo="bar"] an E element whose "foo" attribute value is exactly equal to "bar" (CSS 2)
E[foo~="bar"] an E element whose "foo" attribute v...
What's the best way to set a single pixel in an HTML5 canvas?
...+")";
ctx.fillRect( x, y, 1, 1 );
You can test the speed of these here: http://jsperf.com/setting-canvas-pixel/9 or here https://www.measurethat.net/Benchmarks/Show/1664/1
I recommend testing against browsers you care about for maximum speed. As of July 2017, fillRect() is 5-6× faster on Firef...
Ignoring accented letters in string comparison
...r example data. Here is the article where I got my background information: http://www.codeproject.com/KB/cs/EncodingAccents.aspx
private static bool CompareIgnoreAccents(string s1, string s2)
{
return string.Compare(
RemoveAccents(s1), RemoveAccents(s2), StringComparison.InvariantCultur...
Calculate age given the birth date in the format YYYYMMDD
...y the most accurate, as it doesn't rely on the time of day.
Benchmarks: http://jsperf.com/birthday-calculation/15
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Case insensitive string compare in LINQ-to-SQL
...racter handling such as this) has relevant posts on ToUpper vs. ToLower:
http://www.siao2.com/2007/10/01/5218976.aspx
http://www.siao2.com/2005/03/10/391564.aspx
He says "String.ToUpper – Use ToUpper rather than ToLower, and specify InvariantCulture in order to pick up OS casing rules"
...
How to access the content of an iframe with jQuery?
...contents() method:
$("#myiframe").contents().find("#myContent")
Source: http://simple.procoding.net/2008/03/21/how-to-access-iframe-in-jquery/
API Doc: https://api.jquery.com/contents/
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Postgresql aggregate array
...
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 rep...
How can I make XSLT work in chrome?
...your browser.
The local web page creates an <iframe> whose source is https://mail.google.com/mail/.
Because you are logged in to Gmail, the frame loads the messages in your inbox.
The local web page reads the contents of the frame by using JavaScript to access frames[0].document.documentElemen...