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Difference between two dates in MySQL
...rom MySQL:
http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html
for example:
mysql> SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30 00:00:00') * 24*60*60
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Microsecond timing in JavaScript
... in javascript:
http://gent.ilcore.com/2012/06/better-timer-for-javascript.html
However, in the past, I found a crude method of getting 0.1 millisecond precision in JavaScript out of a millisecond timer. Impossible? Nope. Keep reading:
I'm doing some high-precisio experiments that requires self...
Ruby: How to get the first character of a string
...nd 2.1.
"Smith".chr #=> "S"
http://ruby-doc.org/core-1.9.3/String.html#method-i-chr
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Setting mime type for excel document
...at answer, then the link in that document, gets us to here: tools.ietf.org/html/rfc6266#section-4.3. As far as I can tell, the security concern is just involving filenames provided by users--if they contain non-latin characters, or characters that are invalid on some OS. All the major browsers have ...
Force re-download of release dependency using Maven
...ven.apache.org/plugins/maven-dependency-plugin/purge-local-repository-mojo.html
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Changing element style attribute dynamically using JavaScript
...
Assuming you have HTML like this:
<div id='thediv'></div>
If you want to modify the style attribute of this div, you'd use
document.getElementById('thediv').style.[ATTRIBUTE] = '[VALUE]'
Replace [ATTRIBUTE] with the style at...
How to check with javascript if connection is local host?
...
if launching static html in browser, eg from location like file:///C:/Documents and Settings/Administrator/Desktop/ detecting "localhost" will not work. location.hostname will return empty string. so
if (location.hostname === "localhost" || loc...
Changing the color of an hr element
... also need to specify background-color (as @Ibu suggested in his answer).
HTML 5 Boilerplate project in its default stylesheet specifies the following rule:
hr { display: block; height: 1px;
border: 0; border-top: 1px solid #ccc;
margin: 1em 0; padding: 0; }
An article titled “12 Littl...
Undefined reference to pthread_create in Linux
...@sholsapp Here is the explanation: webpages.charter.net/ppluzhnikov/linker.html
– Employed Russian
Jan 13 '12 at 4:33
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JPA CascadeType.ALL does not delete orphans
...s parent's collection. See download.oracle.com/javaee/6/tutorial/doc/bnbqa.html#giqxy
– Archie
Sep 13 '10 at 22:37
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